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Benzazepine compounds, conjugates and uses thereof

文档序号：1651724 发布日期：2019-12-24 浏览：29次 中文

阅读说明：本技术 苯并氮杂*化合物、缀合物及其用途 (Benzazepine compounds, conjugates and uses thereof ) 是由 克雷格·艾伦·科伯恩 彼得·罗伯特·鲍姆 肖恩·韦斯利·史密斯 于 2018-03-14 设计创作，主要内容包括：本文公开了用于治疗诸如癌症的疾病的苯并氮杂<Image he="71" wi="64" file="DDA0002267215650000012.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>化合物、缀合物和药物组合物。公开的苯并氮杂<Image he="73" wi="65" file="DDA0002267215650000013.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>化合物尤其可用于治疗癌症和调节TLR8。另外,本文描述了掺入具有抗体构建体的缀合物中的苯并氮杂<Image he="69" wi="63" file="DDA0002267215650000011.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>化合物。(Disclosed herein are benzazepines for the treatment of diseases such as cancer Compounds, conjugates, and pharmaceutical compositions. Disclosed are benzazepines The compounds are particularly useful for treating cancer and modulating TLR 8. In addition, described herein are benzazepines incorporated into conjugates with antibody constructs A compound is provided.)

1. A compound represented by the structure of formula (IIA):

or a pharmaceutically acceptable salt thereof, wherein:

represents an optional double bond;

L10is-X10-；

L2Is selected from-X2-、-X2-C1-6alkylene-X2-、-X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on the alkylene, alkenylene or alkynylene group12Optionally substituted;

X10selected from the group consisting of-C (O) -and-C (O) N (R)10) -, wherein X represents X10And R5Where the bond is located;

X2independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; and C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R5selected from unsaturated C4-8A carbocyclic ring; a bicyclic carbocycle; and fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycles, wherein R5Is optionally substituted and wherein the substituents at each occurrence are independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen-OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R5Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OH, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl, -C1-10Haloalkyl, -O-C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

R12independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6An alkynyl group; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12Is optionally substituted or two substituents on a single carbon atom combine to form a 3-to 7-membered carbocyclic ring.

2. The compound or salt of claim 1, wherein the compound of formula (IIA) is represented by formula (IIB):

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

3. A compound or salt according to claim 2, wherein R20、R21、R22And R23Independently selected from hydrogen, halogen, -OH, -OR10、-NO2-CN and C1-10An alkyl group.

4. A compound or salt according to claim 3, wherein R20、R21、R22And R23Each is hydrogen.

5. A compound or salt according to claim 3, wherein R21Is a halogen.

6. A compound or salt according to claim 3, wherein R21Is hydrogen.

7. A compound or salt according to claim 3, wherein R21is-OR10。

8. A compound or salt according to claim 7, wherein R21is-OCH3。

9. The compound or salt of any one of claims 2 to 8, wherein R24And R25Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10Alkyl, or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

10. The compound or salt of claim 9, wherein R24And R25Each is hydrogen.

11. The compound or salt of claim 9, wherein R24And R25Together form an optionally substituted saturated C3-5Carbocyclic ring wherein the substituents are selected from halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; and C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each independently optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycles and 3-to 12-membered heterocycles.

12. The compound or salt of any one of claims 1 to 11, wherein R1Is hydrogen.

13. The compound or salt of any one of claims 1 to 12, wherein R2Is hydrogen.

14. The compound or salt of any one of claims 1 to 13, wherein R2is-C (O) -.

15. The compound or salt of any one of claims 1 to 13, wherein L10Selected from the group consisting of-C (O) N (R)10)-*。

16. The compound or salt of claim 15 wherein-C (O) N (R)10) R in10Selected from hydrogen and C1-6An alkyl group.

17. The compound or salt of claim 16, wherein L10is-C (O) NH-.

18. The compound or salt of any one of claims 11-17, wherein R5Is an optionally substituted bicyclic carbocycle.

19. The compound or salt of claim 18, wherein R5Is an optionally substituted 8-to 12-membered bicyclic carbocyclic ring.

20. The compound or salt of claim 19, wherein R5Is an optionally substituted 8-to 12-membered bicyclic carbocyclic ring substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

21. The compound or salt of claim 20, wherein R5Is an optionally substituted 8-to 12-membered bicyclic carbocyclic ring substituted with one or more substituents independently selected from: -OR10、-N(R10)2And ═ O.

22. The compound or salt of claim 21, wherein R5Is optionally substituted indane and optionally substituted tetralin.

23. The compound or salt of claim 22, wherein R5Selected from: any of which is optionally substituted.

24. The compound or salt of claim 23, wherein R5Selected from:

25. the compound or salt of any one of claims 1-17, wherein R5Is optionally substituted unsaturated C4-8A carbocyclic ring.

26. The compound or salt of claim 25, wherein R5Is optionally substituted unsaturated C4-6A carbocyclic ring.

27. The compound or salt of claim 26, wherein R5Is unsaturated C optionally substituted with one or more substituents independently selected from4-6Carbocyclic ring: optionally substituted C3-12Carbocycle and optionally substituted 3-to 12-membered heterocycle.

28. The compound or salt of claim 27, wherein R5Is unsaturated C optionally substituted with one or more substituents independently selected from4-6Carbocyclic ring: optionally substituted phenyl, optionally substituted 3 to 12 heterocycle, optionally substituted C1-10Alkyl, optionally substituted C2-10Alkenyl and halogen.

29. The compound or salt of any one of claims 1-17, wherein R5Selected from the group consisting of optionally substituted fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycles.

30. The compound or salt of claim 29, wherein R5Is a fused 5-5, fused 5-6, and fused 6-6 bicyclic heterocycle optionally substituted with one or more substituents independently selected from the group consisting of: -C (O) OR10、-N(R10)2、-OR10And optionally substituted C1-10An alkyl group.

31. The compound or salt of claim 30, wherein R5Is represented by-C (O) OR10Substituted optionally substituted fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycles.

32. The compound or salt of claim 31, wherein R5Is an optionally substituted fused 6-6 bicyclic heterocycle.

33. The compound or salt of claim 32, wherein the fused 6-6 bicyclic heterocycle is optionally substituted pyridine-piperidine.

34. The compound or salt of claim 33, wherein L10Bonded to the carbon atom of the pyridine in the fused pyridine-piperidine.

35. The compound or salt of claim 29, wherein R5Is selected from fourHydroquinoline, tetrahydroisoquinoline, tetrahydronaphthyridine, cyclopentylpyridine, and dihydrobenzoxaborole, any of which is optionally substituted.

36. The compound or salt of claim 35, wherein R5Is an optionally substituted tetrahydronaphthyridine.

37. The compound or salt of claim 29, wherein R5Selected from:

38. the compound or salt of any one of claims 1 to 37, wherein when R is5Is substituted, R5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen element、-OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

39. The compound or salt of claim 38, wherein R5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycles and 3-to 12-membered heterocycles.

40. A compound or salt according to claim 39, wherein R5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2O and-CN; and C optionally substituted with one or more substituents independently selected from1-10Alkyl groups: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)OR10、-NO2O and-CN.

41. The compound or salt of any one of claims 1 to 40, wherein R5Is unsubstituted.

42. The compound or salt of any one of claims 1 to 41, wherein L2Selected from the group consisting of-C (O) -and-C (O) NR10-。

43. The compound or salt of claim 42, wherein L2is-C (O) -.

44. The compound or salt of claim 42, wherein L2Selected from-C (O) NR10-。

45. The compound or salt of claim 44, wherein-C (O) NR10R in (A-C)10Selected from hydrogen and C1-6An alkyl group.

46. The compound or salt of claim 45, wherein L2is-C (O) NH-.

47. The compound or salt of any one of claims 1-46, wherein R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and 3 to 12 membered, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

48. The compound or salt of claim 47, wherein R4Selected from: -OR10and-N (R)10)2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl.

49. The compound or salt of claim 48, wherein R4is-N (R)10)2。

50. The compound or salt of claim 49, wherein-N (R)10)2R in (1)10Independently at each occurrence is selected from optionally substituted C1-6An alkyl group.

51. The compound or salt of claim 50, wherein-N (R)10)2R in (1)10At each time of dischargeAnd when present is independently selected from methyl, ethyl, propyl and butyl, any of which is optionally substituted.

52. A compound or salt according to claim 51, wherein R4Is that

53. The compound or salt of claim 52, wherein-L2-R4Is that

54. The compound or salt of any one of claims 1-53, wherein R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10A carbocyclic ring and a3 to 10 membered heterocyclic ring, each of which is substituted with one or more substituents independently selected fromSelecting and substituting: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

55. The compound or salt of claim 54, wherein R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; and C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycles and 3-to 10-membered heterocycles.

56. The compound or salt of claim 1, wherein the compound is selected from the group consisting of:

and salts of any thereof.

57. A compound represented by the structure of formula (IIIA):

or a pharmaceutically acceptable salt thereof, wherein:

represents an optional double bond;

L11is-X11-；

L2Is selected from-X2-、-X2-C1-6alkylene-X2-、-X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on alkylene, alkenylene or alkynylene12Optionally substituted;

X11selected from the group consisting of-C (O) -and-C (O) N (R)10) -, wherein X represents X11And R6Where the bond is located;

X2independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)-、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)-、-OS(O)2-、-S(O)2O-、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; c1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R6selected from phenyl and 5 or 6 membered heteroaryl, any of which is selected from R7Is substituted with one or more substituents of (A), and R6Is independently selected from R12Further optionally substituted with one or more additional substituents of (a);

R7selected from-C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10)、-C(O)CH3、-C1-3alkylene-NHC (O) OR11、-C1-3alkylene-NHC (O) R10、-C1-3alkylene-NHC (O) NHR10、-C1-3alkylene-NHC (O) -C1-3alkylene-R10And is independently selected from R12A3 to 12 membered heterocyclic ring optionally substituted with one or more substituents of (a);

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OH, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、-C1-10Alkyl, -C1-10Haloalkyl, -O-C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle and 3 to 12 membered heterocycle;

R11is selected from C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is independently selected from R12Optionally substituted with one or more substituents of (a);

R12at each occurrenceIs independently selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12Is optionally substituted or two substituents on a single carbon atom are combined toForming a3 to 7 membered carbocyclic ring.

58. The compound or salt of claim 57, wherein the compound of formula (IIIA) is represented by formula (IIIB):

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

59. The compound or salt of claim 58, wherein R20、R21、R22And R23Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10An alkyl group.

60. The compound or salt of claim 59, wherein R20、R21、R22And R23Each is hydrogen.

61. Such asThe compound or salt of any one of claims 58 to 60, wherein R24And R25Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10Alkyl, or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

62. The compound or salt of claim 61, wherein R24And R25Each is hydrogen.

63. The compound or salt of claim 61, wherein R24And R25Together form an optionally substituted saturated C3-5A carbocyclic ring.

64. The compound or salt of any one of claims 57-63, wherein R1Is hydrogen.

65. The compound or salt of any one of claims 57-64, wherein R2Is hydrogen.

66. The compound or salt of any one of claims 57-65, wherein L11Selected from the group consisting of-C (O) N (R)10)-*。

67. The compound or salt of claim 66, wherein-C (O) N (R)10) R in10Selected from hydrogen and C1-6An alkyl group.

68. The compound or salt of claim 67, wherein L11is-C (O) NH-.

69. The compound or salt of any one of claims 57-68, wherein R6Is by R7Substituted phenyl and R6Is independently selected from R12Is further optionally substituted.

70. Such as rightThe compound or salt of claim 69, wherein R6Selected from phenyl substituted with one or more substituents independently selected from: -C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10)、-C1-3alkylene-NHC (O) R10and-C (O) CH3(ii) a And a3 to 12 membered heterocyclic ring optionally substituted with one or more substituents selected from: -OH, -N (R)10)2、–NHC(O)(R10)、–NHC(O)O(R10)、–NHC(O)N(R10)2、-C(O)R10、-C(O)N(R10)2、-C(O)2R10and-C1-3Alkylene- (R)10) And R is6Is independently selected from R12Is further optionally substituted.

71. The compound or salt of claim 70, wherein R6Selected from:

72. the compound or salt of any one of claims 57-68, wherein R6Is selected from independently selected from R75-and 6-membered heteroaryl substituted with one or more substituents of (a), and R6Is selected from R12Is further optionally substituted.

73. The compound or salt of claim 72, wherein R6Selected from 5-and 6-membered heteroaryl groups substituted with one or more substituents independently selected from: -C (O) CH3、-C1-3alkylene-NHC (O) OR10、-C1-3alkylene-NHC (O) R10、-C1-3alkylene-NHC (O) NHR10and-C1-3alkylene-NHC (O) -C1-3Alkylene- (R)10) (ii) a And a3 to 12 membered heterocyclic ring optionally substituted with one or more substituents selected from: -OH, -N (R)10)2、–NHC(O)(R10)、–NHC(O)O(R10)、–NHC(O)N(R10)2、-C(O)R10、-C(O)N(R10)2、-C(O)2R10and-C1-3Alkylene- (R)10) And R is6Is independently selected from R12Optionally further substituted with one or more additional substituents of (a).

74. The compound or salt of claim 73, wherein R6Selected from the group consisting of substituted pyridines, pyrazines, pyrimidines, pyridazines, furans, pyrans, oxazoles, thiazoles, imidazoles, pyrazoles, oxadiazoles, oxathiazoles, and triazoles, and R6Is independently selected from R12Optionally further substituted with one or more additional substituents of (a).

75. The compound or salt of claim 74, wherein R6Is a substituted pyridine, and R6Is independently selected from R12Optionally further substituted with one or more additional substituents of (a).

76. The compound or salt of claim 75, wherein R6As follows:

77. the compound or salt of claim 75, wherein R6Is a substituted pyridine, and wherein R7is-C1-3alkylene-NHC (O) -C1-3alkylene-R10。

78. The compound or salt of any one of claims 73-77, wherein R7is-C1alkylene-NHC (O) -C1alkylene-R10。

79. The compound or salt of claim 78, which isIn R7is-C1alkylene-NHC (O) -C1alkylene-NH2。

80. The compound or salt of claim 72, wherein R6Selected from:

81. the compound or salt of claim 80, wherein R6Is that

82. The compound or salt of any one of claims 57-81, wherein L2Selected from the group consisting of-C (O) -and-C (O) NR10-。

83. The compound or salt of claim 82, wherein L2Selected from-C (O) NR10-。

84. The compound or salt of claim 83, wherein-C (O) NR10R in (A-C)10Selected from hydrogen and C1-6An alkyl group.

85. The compound or salt of claim 84, wherein L2is-C (O) NH-.

86. The compound or salt of claim 82, wherein L2is-C (O) -.

87. The compound or salt of any one of claims 57-86, wherein R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and 3 to 12 membered, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

88. The compound or salt of claim 87, wherein R4Selected from: -OR10and-N (R)10)2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl.

89. The compound or salt of claim 88, wherein R4is-N (R)10)2。

90. The compound or salt of claim 89, wherein-N (R)10)2R in (1)10Independently at each occurrence is selected from optionally substituted C1-6An alkyl group.

91. The compound or salt of claim 90, wherein-N (R)10)2R in (1)10Independently at each occurrence, is selected from the group consisting of methyl, ethyl, propyl, and butyl, any of which is optionally substituted.

92. The compound or salt of claim 91, wherein R4Is that

93. The compound or salt of claim 92, wherein-L2-R4Is that

94. The compound or salt of any one of claims 57-93, wherein R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10A carbocycle and a 3-to 10-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

95. The compound or salt of claim 94, wherein R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycles and 3-to 10-membered heterocycles.

96. The compound or salt of claim 57, wherein the compound is selected from:

and salts of any thereof.

97. A compound represented by the structure of formula (IA):

or a pharmaceutically acceptable salt thereof, wherein:

represents an optional double bond;

L1is selected from-X1-、-X2-C1-6alkylene-X2-C1-6Alkylene-, -X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on alkylene, alkenylene or alkynylene12Optionally substituted;

L2is selected from-X2-、-X2-C1-6alkylene-X2-、-X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on alkylene, alkenylene or alkynylene12Optionally substituted;

X1selected from-S-, -N (R)10)-*、-C(O)O-*、-OC(O)-*、-OC(O)O-*、-C(O)N(R10)C(O)-*、-C(O)N(R10)C(O)N(R10)*、-N(R10)C(O)-*、-CR10 2N(R10)C(O)-*、-N(R10)C(O)N(R10)-*、-N(R10)C(O)O-*、-OC(O)N(R10)-*、-C(NR10)-*、-N(R10)C(NR10)-*、-C(NR10)N(R10)-*、-N(R10)C(NR10)N(R10)-*、-S(O)2-*、-OS(O)-*、-S(O)O-*、-S(O)、-OS(O)2-*、-S(O)2O*、-N(R10)S(O)2-*、-S(O)2N(R10)-*、-N(R10)S(O)-*、-S(O)N(R10)-*、-N(R10)S(O)2N(R10) - (O-H) -and-N (R)10)S(O)N(R10) -, wherein X represents X1And R3Where the bond is located;

X2independently at each occurrence is selected from-O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; c1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R3selected from optionally substituted C3-12Carbocyclic and optionally substituted 3 to 12 membered heterocyclic ring, wherein R3The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R3Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、

-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence is selected from: hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

R12independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12Is optionally substituted or two substituents on a single carbon atom combine to form a 3-to 7-membered carbocyclic ring.

98. The compound or salt of claim 97, wherein the compound of formula (IA) is represented by formula (IB):

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

99. The compound or salt of claim 98, wherein R20、R21、R22And R23Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10An alkyl group.

100. The compound or salt of claim 99, wherein R20、R21、R22And R23Each is hydrogen.

101. The compound or salt of any one of claims 98-100, wherein R24And R25Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10Alkyl, or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

102. The compound or salt of claim 101, wherein R24And R25Each is hydrogen.

103. The compound or salt of claim 101, wherein R24And R25Together form an optionally substituted saturated C3-5A carbocyclic ring.

104. The compound or salt of any one of claims 97-103, wherein R1Is hydrogen.

105. The compound or salt of any one of claims 97-104, wherein R2Is hydrogen.

106. The compound or salt of any one of claims 97-105, wherein L1Is selected from-N (R)10)C(O)-*、-S(O)2N(R10)-*、-CR10 2N(R10) C (O) -, and-X2-C1-6alkylene-X2-C1-6Alkylene-.

107. The compound or salt of claim 106, wherein L1Is selected from-N (R)10)C(O)-*。

108. The compound of claim 107 orSalt of formula (I), wherein-N (R)10) R in C (O) -)10Selected from hydrogen and C1-6An alkyl group.

109. The compound or salt of claim 108, wherein L1Is-nhc (o) -.

110. The compound or salt of claim 106, wherein L1Selected from-S (O)2N(R10)-*。

111. The compound or salt of claim 110, wherein-S (O)2N(R10) R in10Selected from hydrogen and C1-6An alkyl group.

112. The compound or salt of claim 111, wherein L1is-S (O)2NH-*。

113. The compound or salt of claim 106, wherein L1is-CR10 2N(R10)C(O)-*。

114. The compound or salt of claim 113, wherein L1Is selected from-CH2N (H) C (O) and-CH (CH)3)N(H)C(O)-*。

115. The compound or salt of any one of claims 97-114, wherein R3Selected from optionally substituted C3-12Carbocyclic and optionally substituted 3 to 12 membered heterocyclic ring, wherein R3The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl radicals each of whichOptionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

116. The compound or salt of claim 115, wherein R3Selected from optionally substituted C3-12Carbocyclic and optionally substituted 3 to 12 membered heterocyclic ring, wherein R3The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycles and 3-to 12-membered heterocycles.

117. The compound or salt of any one of claims 97-116, wherein R3Selected from optionally substituted aryl and optionally substituted heteroaryl.

118. The compound or salt of claim 117, wherein R3Is an optionally substituted heteroaryl group.

119. The compound or salt of claim 118, wherein R3Is optionally substituted heteroaryl substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

120. The compound or salt of claim 118 or 119, wherein R3Selected from optionally substituted 6-membered heteroaryl.

121. The compound or salt of claim 120, wherein R3Is optionally substituted pyridine.

122. The compound or salt of claim 117, wherein R3Is an optionally substituted aryl group.

123. The compound or salt of claim 122, wherein R3Is an optionally substituted aryl group substituted with one or more substituents independently selected from the group consisting of: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

124. The compound or salt of claim 122 or 123, wherein R3Is optionally substituted phenyl.

125. The compound or salt of claim 117, wherein R3Selected from pyridine, phenyl, tetrahydronaphthalene, tetrahydroquinoline, tetrahydroisoquinoline, indane, cyclopropylbenzene, cyclopentylpyridine and dihydrobenzoxaborole, any of which is optionally substituted.

126. The compound or salt of any one of claims 97-125, wherein R3Selected from: any of which is optionally substituted.

127. The compound or salt of claim 126, wherein R3Selected from:

128. the method of any one of claims 97-127A compound or salt thereof, wherein L2Selected from the group consisting of-C (O) -and-C (O) NR10-。

129. The compound or salt of claim 128, wherein L2is-C (O) -.

130. The compound or salt of claim 128, wherein L2Selected from-C (O) NR10-。

131. The compound or salt of claim 130 wherein-c (o) NR10R in (A-C)10Selected from hydrogen and C1-6An alkyl group.

132. The compound or salt of claim 131, wherein L2is-C (O) NH-.

133. The compound or salt of any one of claims 97-132, wherein R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

134. The compound or salt of claim 133, wherein R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycles and 3-to 12-membered heterocycles.

135. The compound or salt of claim 133, wherein R4Selected from: -OR10and-N (R)10)2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl.

136. The compound or salt of claim 135, wherein R4is-N (R)10)2。

137. The compound or salt of claim 136, wherein-N (R)10)2R in (1)10Independently at each occurrence is selected from optionally substituted C1-6An alkyl group.

138. The compound or salt of claim 137, wherein-N (R)10)2R in (1)10Independently at each occurrence, is selected from the group consisting of methyl, ethyl, propyl, and butyl, any of which is optionally substituted.

139. The compound or salt of claim 138, wherein R4Is that

140. The compound or salt of claim 139, wherein L2-R4Is that

141. The compound or salt of any one of claims 97-140, wherein R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10A carbocycle and a 3-to 10-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6Alkynyl.

142. The compound or salt of claim 141, wherein R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycles and 3-to 10-membered heterocycles.

143. The compound or salt of claim 97, wherein the compound is selected from:

and salts of any thereof.

144. A compound represented by the structure of formula (IVA):

or a pharmaceutically acceptable salt thereof, wherein:

represents an optional double bond;

L12is selected from-X3-、-X3-C1-6alkylene-X3-、-X3-C2-6alkenylene-X3-and-X3-C2-6alkynylene-X3-, each of which is independently selected from R on alkylene, alkenylene or alkynylene12Optionally substituted with one or more substituents of (a);

L22independently selected from-X4-、-X4-C1-6alkylene-X4-、-X4-C2-6alkenylene-X4-and-X4-C2-6alkynylene-X4-, each of which is independently selected from R on alkylene, alkenylene or alkynylene10Optionally substituted with one or more substituents of (a);

X3and X4Independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)-、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)-、-OS(O)2-、-S(O)2O-、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from L3And hydrogen; and C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4and R8Independently selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4And R8Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence is selected from L3Hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

L3is a linker moiety wherein R1、R2And R10Is at least one of L3Or is selected from R1、R2、R4、R8、X3And X4At least one substituent on the group of (a) is L3(ii) a And

R12independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6An alkynyl group; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12Is optionally substituted or two substituents on a single carbon atom combine to form a 3-to 7-membered carbocyclic ring.

145. The compound or salt of claim 145, wherein the compound of formula (IVA) is represented by formula (IVB):

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

146. The compound or salt of claim 144 or 145, wherein R1Is L3。

147. The compound or salt of claim 144 or 145, wherein R2Is L3。

148. The compound or salt of any one of claims 144-147, wherein L12is-C (O) N (R)10)-。

149. The compound or salt of claim 148, wherein-c (o) N (R)10) R in (A-C)10Selected from hydrogen, C1-6Alkyl and L3。

150. The compound or salt of claim 149, wherein L12is-C (O) NH-.

151. The compound or salt of any one of claims 144-150, wherein R8Is an optionally substituted 5-or 6-membered heteroaryl.

152. The compound or salt of claim 151, wherein R8Is a quilt L3Substituted optionally substituted 5 or 6 membered heteroaryl.

153. The compound or salt of claim 152, wherein R8Is a quilt L3Substituted optionally substituted pyridines.

154. The compound or salt of any one of claims 144-153, wherein L22Selected from the group consisting of-C (O) -and-C (O) NR10-。

155. The compound or salt of claim 154, wherein L22is-C (O) -.

156. The compound or salt of claim 154, wherein L22is-C (O) NR10-。

157. The compound or salt of claim 156 wherein-c (o) NR10R in (A-C)10Selected from hydrogen, C1-6Alkyl and-L3。

158. The compound or salt of claim 157, wherein L22is-C (O) NH-.

159. The compound or salt of any one of claims 144-158, wherein R4Selected from: -OR10and-N (R)10)2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle, a 3-to 12-membered heterocycle, an aryl and a heteroaryl, each of which is independently selected from one or more ofThe substituents are optionally substituted: l is3Halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl.

160. The compound or salt of claim 159, wherein R4is-N (R)10)2and-N (R)10)2R in (1)10Is selected from L3And hydrogen, and wherein-N (R)10)2At least one R of10Is L3。

161. A compound of table 1, or a salt thereof, selected from: 1.1, 1.2, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17, 1.18, 1.19, 1.20, 1.23, 1.24, 1.25, 1.26, 1.27, 1.29, 1.30, 1.31, 1.32, 1.33, 1.34, 1.35, 1.36, 1.37, 1.38, 1.39, 1.40, 1.41, 1.42, 1.43, 1.44, 1.45, 1.46, 1.48, 1.50, 1.51, 1.52, 1.53, 1.54, 1.55, 1.56, 1.57, 1.58, 1.59, 1.60, 1.63 and 1.25.

162. The compound or salt of any one of claims 1-143 or 161, wherein the compound is further linked to a linker L3And (4) covalently bonding.

163. The compound or salt of any one of claims 144-160 or 162, wherein L3Is a non-cleavable linker.

164. The compound or salt of any one of claims 144-160 or 162, wherein L3Is a cleavable linker.

165. The compound or salt of claim 164, wherein L3Are cleavable by lysosomal enzymes.

166. The compound or salt of any one of claims 1 to 143 or 161, wherein the compound is covalently linked to an antibody construct.

167. The compound or salt of any one of claims 144-160 or 162, wherein the compound is covalently attached to a targeting moiety, optionally through the linker.

168. The compound or salt of claim 166 or 167, wherein the targeting moiety or antibody construct is capable of specifically binding to a tumor antigen.

169. The compound or salt of any one of claims 166-168, wherein the antibody construct or targeting moiety further comprises a target binding domain.

170. The compound or salt of any one of claims 144-160 or 162, wherein L3Is represented by the formula:is shown, in which:

L4represents the C-terminus and L of the peptide5Selected from the group consisting of a bond, alkylene, and heteroalkylene, wherein L5Is independently selected from R32Is optionally substituted, and RX is a reactive moiety; and

R32independently at each occurrence, is selected from the group consisting of halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2、-NO2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2、-NO2。

171. The compound or salt of claim 170, wherein RX comprises a leaving group.

172. The compound or salt of claim 170, wherein RX comprises maleimide.

173. The compound or salt of any one of claims 144-160 or 162, wherein L3And also covalently bound to an antibody construct.

174. The compound or salt of claim 173, wherein the antibody construct is directed against a tumor antigen.

175. The compound or salt of claim 174, wherein the antibody construct further comprises a target binding domain.

176. The compound or salt of claim 173, 174, or 175, wherein L is3Is represented by the formula:is represented by the formula, wherein L4Represents the C-terminus and L of the peptide5Selected from the group consisting of a bond, alkylene, and heteroalkylene, wherein L5Is independently selected from R32Optionally substituted with one or more groups of (a); RX*Comprising a bond, a succinimide moiety or a hydrolysed succinimide moiety bound to a residue of an antibody construct, wherein on RXRepresents a point of attachment to a residue of the antibody construct; and the combination of (a) and (b),

R32independently at each occurrence, is selected from the group consisting of halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2、-NO2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OH, -CN, -O-alkyl, -SH, or,＝O、＝S、-NH2、-NO2。

177. The compound or salt of any one of claims 170-172 or 176, wherein L3The peptide of (1) comprises Val-Cit or Val-Ala.

178. A compound or salt selected from:

and salts of any thereof.

179. A compound or salt selected from:

and salts of any thereof, wherein said RX*Is a bond, a succinimide moiety or a hydrolysed succinimide moiety bound to a residue of an antibody construct, wherein on RXIndicates the point of attachment to a residue of the antibody construct.

180. The compound or salt of any one of claims 144-160 or 162, wherein L3Is represented by the formula:wherein RX comprises a reactive moiety and n is 0-9.

181. The compound or salt of claim 180, wherein RX comprises a leaving group.

182. The compound or salt of claim 180, wherein RX comprises maleimide.

183. The compound or salt of any one of claims 173, 174, or 175, wherein L is3As follows:wherein RX*Comprising a bond, a succinimide moiety or a hydrolysed succinimide moiety bound to a residue of an antibody construct, wherein on RXIndicates the point of attachment to a residue of the antibody construct, and n-0-9.

184. A compound or salt selected from:

and salts of any thereof.

185. A compound or salt selected from:

and salts of any thereof, wherein RX*Comprising a bond, a succinimide moiety or a hydrolysed succinimide moiety bound to a residue of an antibody construct, wherein on RXIndicates the point of attachment to a residue of the antibody construct.

186. The compound or salt of claim 176, 179, 183, or 185, wherein RX*Comprising a succinamide moiety and bound to a cysteine residue of an antibody construct.

187. The compound or salt of claim 176, 179, 183, or 185, wherein RX*Comprising a hydrolyzed succinamide moiety and bound to a cysteine residue of an antibody construct.

188. The compound or salt of any one of claims 173-176, 179, 183, or 185-187, wherein the antibody construct comprises a HER2 antigen binding domain.

189. The compound or salt of any one of claims 173 to 176, 179, 183, or 185 to 187, wherein the antibody construct comprises a TROP2 antigen binding domain.

190. The compound or salt of claim 188, wherein the antibody construct is pertuzumab or an antigen-binding fragment thereof.

191. The compound or salt of claim 188, wherein the antibody construct is trastuzumab or an antigen-binding fragment thereof.

192. The compound or salt of claim 189, wherein the antibody construct is psazemtuzumab or an antigen-binding fragment thereof.

193. A conjugate represented by the formula:

wherein the antibody is an antibody construct, D is a compound or salt selected from any one of claims 1 to 143 or 161 and L3Are connector parts.

194. A conjugate represented by the formula:

wherein the antibody is an antibody construct and D-L3Is selected from the compounds or salts of any one of claims 144-160 or 162-165.

195. The conjugate of claim 193 or 194, wherein the antibody construct comprises a HER2 antigen binding domain.

196. The conjugate of claim 193 or 194, wherein the antibody construct comprises a TROP2 antigen binding domain.

197. The conjugate of claim 195, wherein the antibody construct is pertuzumab or an antigen-binding fragment thereof.

198. The conjugate of claim 195, wherein the antibody construct is trastuzumab or an antigen-binding fragment thereof.

199. The conjugate of claim 196, wherein the antibody construct is saritumumab or an antigen-binding fragment thereof.

200. A pharmaceutical composition comprising a compound or salt of any one of claims 1-143 or 161 and at least one pharmaceutically acceptable excipient.

201. A pharmaceutical composition comprising the conjugate of any one of claims 193 or 199 and at least one pharmaceutically acceptable excipient.

202. The pharmaceutical composition of claim 201, wherein the average DAR of the conjugate is about 2 to about 8, or about 1 to about 3, or about 3 to about 5.

203. A method of killing a tumor cell in vivo, comprising contacting a population of tumor cells with the conjugate of any one of claims 193 or 199.

204. A method for treatment comprising administering to a subject the conjugate of any of claims 193 or 199.

205. A method for treatment comprising administering to a subject in need thereof a compound or salt of any one of claims 1-143 or 161.

206. A method for treating cancer, comprising administering to a subject in need thereof the conjugate of any one of claims 193 or 199.

207. A method for treating cancer, comprising administering to a subject in need thereof a compound or salt of any one of claims 1-143 or 161.

208. The compound or salt of any one of claims 1 to 143 or 161 for use in a method of treating the body of a subject by therapy.

209. The compound or salt of any one of claims 1 to 143 or 161 for use in a method of treating cancer.

210. The conjugate of any one of claims 193 or 199 for use in a method of treating the body of a subject by therapy.

211. The conjugate of any one of claims 193 or 199 for use in a method of treating cancer.

212. A benzazepine compoundA method of delivering a compound to a cancer cell in a subject, comprising administering the conjugate of any of claims 193 or 199 to a subject in need thereof.

213. A method for treating cancer comprising administering an effective amount of an antibody conjugate, wherein the antibody conjugate comprises an antibody construct covalently bound by a linker to a TLR8 agonist, wherein the TLR8 agonist is directed to the K of TLR7dIs K to TLR8d2-fold or greater than 2-fold, and wherein the antibody conjugate comprises 1 to 20 TLR8 agonist/antibody constructs, preferably 1-8, 3-5, or 1-3.

214. A method for treating cancer comprising administering an effective amount of an antibody conjugate, wherein the antibody conjugate comprises an antibody construct covalently bound by a linker to a TLR8 agonist, wherein the TLR8 agonist is in a ratioEC for which the amount of the same compound required to exhibit agonism on TLR7 is at least one order of magnitude less50To TLR8 and wherein the antibody conjugate comprises 1 to 20 TLR8 agonist/antibody constructs, preferably 1-8, 3-5 or 1-3.

215. A method for treating cancer comprising administering an effective amount of an antibody conjugate, wherein the antibody conjugate comprises an antibody construct covalently bound by a linker to a TLR8 agonist, wherein the TLR8 agonist comprises a benzazepine substituted with a bicyclic heterocycleAnd wherein the antibody conjugate comprises 1 to 20 TLR8 agonist/antibody constructs, preferably 1-8, 3-5 or 1-3.

216. Preparation formulaThe method of antibody conjugate of (1), wherein the antibody is an antibody construct, and L3-D is selected from a compound or salt of any one of claims 144-160, 162-165, 170-172, 178, 180-182, or 184, the method comprising reacting L3-D is contacted with the antibody construct.

217. The method of claim 216, wherein the antibody construct comprises a HER2 antigen binding domain.

218. The method of claim 216, wherein the antibody construct comprises a TROP2 antigen binding domain.

219. The method of claim 217, wherein the antibody construct is pertuzumab or an antigen-binding fragment thereof.

220. The method of claim 217, wherein the antibody construct is trastuzumab or an antigen-binding fragment thereof.

221. The method of claim 218, wherein the antibody construct is saritumumab or an antigen-binding fragment thereof.

222. The method of any one of claims 216 to 221, further comprising purifying the antibody conjugate.

Background

In the united states, one of the major causes of death is cancer. Conventional cancer treatment methods, such as chemotherapy, surgery or radiation therapy, often are highly toxic or non-specific to the cancer or both, resulting in limited efficacy and deleterious side effects. However, the immune system is likely to be a powerful specific tool for combating cancer. In many cases, tumors are capable of specifically expressing genes whose products are required to induce or maintain a malignant state. These proteins can be used as antigenic markers for the development and establishment of more specific anti-cancer immune responses. This enhancement of specific immune responses is likely to be a powerful anti-cancer treatment that may be more effective than conventional cancer treatments and may have fewer side effects.

Summary of The Invention

In some aspects, the present disclosure provides compounds represented by the structure of formula (IIA):

or a pharmaceutically acceptable salt thereof, wherein:

represents an optional double bond;

L10is-X10-；

L2Is selected from-X2-、-X2-C1-6alkylene-X2-、-X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on alkylene, alkenylene or alkynylene12Optionally substituted;

X10selected from the group consisting of-C (O) -and-C (O) N (R)10) -, wherein X represents X10And R5Where the bond is located;

X2independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; and C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is independently selected from the followingOptionally substituted with one or more substituents of (a): halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R5selected from unsaturated C4-8A carbocyclic ring; a bicyclic carbocycle; and fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycles, wherein R5Is optionally substituted and wherein the substituents at each occurrence are independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R5Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OH, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl, -C1-10Haloalkyl, -O-C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

R12independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6An alkynyl group; and

wherein benzazepineOn the nucleusAny substitutable carbon of (a) is independently selected from R12Is optionally substituted, or two substituents on a single carbon atom combine to form a 3-to 7-membered carbocyclic ring.

In some embodiments, the compound of formula (IIA) is represented by formula (IIB):

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

In some embodiments, R20、R21、R22And R23Independently selected from hydrogen, halogen, -OH, -OR10、-NO2-CN and C1-10An alkyl group. R20、R21、R22And R23May each be hydrogen. In certain embodiments, R21Is a halogen. In certain embodiments, R21Is hydrogen. In certain embodiments, R21is-OR10. For example, R21May be-OCH3。

In some embodiments, R24And R25Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10Alkyl, or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring. In certain embodiments, R24And R25Each is hydrogen. In other embodiments, R24And R25Together form an optionally substituted saturated C3-5Carbocyclic ring wherein the substituents are selected from halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; and C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each independently optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycles and 3-to 12-membered heterocycles.

In some embodiments, R1Is hydrogen. In some embodiments, R2Is hydrogen. In some embodiments, R2is-C (O) -.

In some embodiments, L is10Selected from the group consisting of-C (O) N (R)10) - *. In certain embodiments, -C (O) N (R)10) R in10Selected from hydrogen and C1-6An alkyl group. For example, L10May be-c (o) NH-.

In some embodiments, R5Is an optionally substituted bicyclic carbocycle. In certain embodiments, R5Is an optionally substituted 8-to 12-membered bicyclic carbocyclic ring. R5May be one or more selected independently fromAn optionally substituted 8-to 12-membered bicyclic carbocyclic ring substituted with substituents: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. In certain embodiments, R5Is an optionally substituted 8-to 12-membered bicyclic carbocyclic ring substituted with one or more substituents independently selected from: -OR10、-N(R10)2And ═ O. In some embodiments, R5Is optionally substituted indane and optionally substituted tetralin. R5Can be selected from:any of which is optionally substituted. For example, R5Selected from:

in some embodiments, R5Is optionally substituted unsaturated C4-8A carbocyclic ring. In certain embodiments, R5Is optionally substituted unsaturated C4-6A carbocyclic ring. In certain embodiments, R5Is unsaturated C optionally substituted with one or more substituents independently selected from4-6Carbocyclic ring: optionally substituted C3-12Carbocycle and optionally substituted 3-to 12-membered heterocycle. R5May be unsaturated C optionally substituted with one or more substituents independently selected from4-6Carbocyclic ring: optionally substituted phenyl, optionally substituted 3 to 12 heterocycle, optionally substituted C1-10Alkyl, optionally substituted C2-10Alkenyl and halogen.

In some embodiments, R5Selected from the group consisting of optionally substituted fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycles. In certain embodiments, R5Is one or more independently selected fromOptionally substituted fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycles of substituents: -C (O) OR10、-N(R10)2、-OR10And optionally substituted C1-10An alkyl group. In certain embodiments, R5Is represented by-C (O) OR10Substituted optionally substituted fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycles. In certain embodiments, R5Is an optionally substituted fused 6-6 bicyclic heterocycle. For example, the fused 6-6 bicyclic heterocycle may be an optionally substituted pyridine-piperidine. In some embodiments, L is10Bonded to the carbon atom of the pyridine in the fused pyridine-piperidine. In certain embodiments, R5Selected from the group consisting of tetrahydroquinoline, tetrahydroisoquinoline, tetrahydronaphthyridine, cyclopentadine (cyclopentapyrdine), and dihydrobenzoxaborole, any of which is optionally substituted. R5May be an optionally substituted tetrahydronaphthyridine. In some embodiments, R5Selected from:

in some embodiments, when R5When is substituted, R5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. In certain embodiments, R5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycles and 3-to 12-membered heterocycles. In certain embodiments, R5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2O and-CN; and C1-10An alkyl group independently selected from the group consisting ofOptionally substituted with one or more substituents of (a): halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)OR10、-NO2O and-CN. In some embodiments, R5Is unsubstituted.

In some embodiments, L is2Selected from the group consisting of-C (O) -and-C (O) NR10-. In some embodiments, L is2is-C (O) -. In some embodiments, L is2Selected from-C (O) NR10-。-C(O)NR10R in (A-C)10Can be selected from hydrogen and C1-6An alkyl group. For example, L2May be-C (O) NH-.

In some embodiments, R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and 3 to 12 membered, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. In some embodiments, R4Selected from: -OR10and-N (R)10)2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl. In certain embodiments, R4is-N (R)10)2。-N(R10)2R in (1)10May be independently selected at each occurrence from optionally substituted C1-6An alkyl group. In certain embodiments, -N (R)10)2R in (1)10Independently at each occurrence, is selected from the group consisting of methyl, ethyl, propyl, and butyl, each of which is optionally substituted. For example, R4Can beIn certain embodiments, -L2-R4Is that

In some embodiments, R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10A carbocycle and a 3-to 10-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. In certain embodiments, R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; and C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycles and 3-to 10-membered heterocycles.

In some embodiments, the compound is selected from:

and salts of any thereof.

In some aspects, the present disclosure provides compounds represented by the structure of formula (IIIA):

or a pharmaceutically acceptable salt thereof, wherein:

represents an optional double bond;

L11is-X11-；

L2Is selected from-X2-、-X2-C1-6alkylene-X2-、-X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on alkylene, alkenylene or alkynylene12Optionally substituted;

X11selected from the group consisting of-C (O) -and-C (O) N (R)10) -, wherein X represents X11And R6Where the bond is located;

X2independently at each occurrence from a bond、-O-、-S-、-N(R10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)-、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)-、-OS(O)2-、-S(O)2O-、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; c1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R6selected from phenyl and 5 or 6 membered heteroaryl, any of which is selected from R7Is substituted with one or more substituents of (A), and R6Is independently selected from R12Further optionally substituted with one or more additional substituents of (a);

R7selected from-C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10)、-C(O)CH3、-C1-3alkylene-NHC (O) OR11、-C1-3alkylene-NHC (O) R10、-C1-3alkylene-NHC (O) NHR10、-C1-3alkylene-NHC (O) -C1-3alkylene-R10And is independently selected from R12A3 to 12 membered heterocyclic ring optionally substituted with one or more substituents of (a);

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OH, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、-C1-10Alkyl, -C1-10Haloalkyl, -O-C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl radical、C3-12Carbocycle and 3 to 12 membered heterocycle;

R11is selected from C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is independently selected from R12Optionally substituted with one or more substituents of (a);

R12independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12Is optionally substituted or two substituents on a single carbon atom combine to form a 3-to 7-membered carbocyclic ring. In some embodiments, the compound of formula (IIIA) is represented by formula (IIIB):

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

In some embodiments, R20、R21、R22And R23Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10An alkyl group. In certain embodiments, R20、R21、R22And R23Each is hydrogen. In some embodiments, R24And R25Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10Alkyl, or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring. In certain embodiments, R24And R25Each is hydrogen. In certain embodiments, R24And R25Together form an optionally substituted saturated C3-5A carbocyclic ring.

In some embodiments, R1Is hydrogen. In some embodiments, R2Is hydrogen.

In some embodiments, L is11Selected from the group consisting of-C (O) N (R)10) - *. In some embodiments, -C (O) N (R)10) R in10Selected from hydrogen and C1-6An alkyl group. For example, L11May be-c (o) NH-.

In some embodiments, R6Is by R7Substituted phenyl and R6Is independently selected from R12Is further optionally substituted. In some embodiments, R6Selected from phenyl substituted with one or more substituents independently selected from: -C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10)、-C1-3alkylene-NHC (O) R10and-C (O) CH3(ii) a And a3 to 12 membered heterocyclic ring optionally substituted with one or more substituents selected from: -OH, -N (R)10)2、–NHC(O)(R10)、–NHC(O)O(R10)、–NHC(O)N(R10)2、-C(O)R10、-C(O)N(R10)2、-C(O)2R10and-C1-3Alkylene- (R)10) And R is6Is independently selected from R12Is further optionally substituted.

For example, R6Can be selected from:

in some embodimentsIn the scheme, R6Is selected from independently selected from R75-and 6-membered heteroaryl substituted with one or more substituents of (a), and R6Is selected from R12Is further optionally substituted. In certain embodiments, R6Selected from 5-and 6-membered heteroaryl groups substituted with one or more substituents independently selected from: -C (O) CH3、-C1-3alkylene-NHC (O) OR10、-C1-3alkylene-NHC (O) R10、-C1-3alkylene-NHC (O) NHR10and-C1-3alkylene-NHC (O) -C1-3Alkylene- (R)10) (ii) a And a3 to 12 membered heterocyclic ring optionally substituted with one or more substituents selected from: -OH, -N (R)10)2、–NHC(O)(R10)、–NHC(O)O(R10)、–NHC(O)N(R10)2、-C(O)R10、-C(O)N(R10)2、-C(O)2R10and-C1-3Alkylene- (R)10) And R is6Is independently selected from R12Optionally further substituted with one or more additional substituents of (a). R6May be selected from substituted pyridines, pyrazines, pyrimidines, pyridazines, furans, pyrans, oxazoles, thiazoles, imidazoles, pyrazoles, oxadiazoles, oxathiazoles and triazoles, and R6Is independently selected from R12Optionally further substituted with one or more additional substituents of (a). In some embodiments, R6Is a substituted pyridine, and R6Is independently selected from R12Optionally further substituted with one or more additional substituents of (a). R6This can be shown as follows: in some embodiments, R6Is a substituted pyridine, and wherein R7is-C1-3alkylene-NHC (O) -C1-3alkylene-R10. In certain embodiments, R7is-C1alkylene-NHC (O) -C1Alkylene oxideradical-R10. In certain embodiments, R7is-C1alkylene-NHC (O) -C1alkylene-NH2. In some embodiments, R6Selected from:

in certain embodiments, R6Is that

In some embodiments, L is2Selected from the group consisting of-C (O) -and-C (O) NR10-. In some embodiments, L is2Selected from-C (O) NR10-。-C(O)NR10R in (A-C)10Can be selected from hydrogen and C1-6An alkyl group. For example, L2May be-C (O) NH-. In some embodiments, L is2is-C (O) -.

In some embodiments, R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and 3 to 12 membered, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. In some embodiments, R4Selected from: -OR10and-N (R)10)2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl. In certain embodiments, R4is-N (R)10)2。-N(R10)2R in (1)10May be independently selected at each occurrence from optionally substituted C1-6An alkyl group. In some embodiments, -N (R)10)2R in (1)10Independently at each occurrence, is selected from the group consisting of methyl, ethyl, propyl, and butyl, each of which is optionally substituted. For example, R4Can beIn some embodiments, -L2-R4Is that

In some embodiments, R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10A carbocycle and a 3-to 10-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. In certain embodiments, R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is independently at each occurrence a member selected from the group consisting ofOne or more substituents are optionally substituted: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycles and 3-to 10-membered heterocycles. In some embodiments, the compound is selected from:

and salts of any thereof.

In some aspects, the present disclosure provides compounds represented by the structure of formula (IA):

or a pharmaceutically acceptable salt thereof, wherein:

represents an optional double bond;

L1is selected from-X1-、-X2-C1-6alkylene-X2-C1-6Alkylene-, -X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on alkylene, alkenylene or alkynylene12Optionally substituted;

L2is selected from-X2-、-X2-C1-6alkylene-X2-、-X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on alkylene, alkenylene or alkynylene12Optionally substituted;

X1selected from-S-, -N (R)10)-*、-C(O)O-*、-OC(O)-*、-OC(O)O-*、-C(O)N(R10)C(O)-*、-C(O)N(R10)C(O)N(R10)*、-N(R10)C(O)-*、-CR10 2N(R10)C(O)-*、-N(R10)C(O)N(R10)-*、-N(R10)C(O)O-*、-OC(O)N(R10)-*、-C(NR10)-*、-N(R10)C(NR10)-*、-C(NR10)N(R10)-*、-N(R10)C(NR10)N(R10)-*、-S(O)2-*、-OS(O)-*、-S(O)O-*、-S(O)、-OS(O)2-*、-S(O)2O*、-N(R10)S(O)2-*、-S(O)2N(R10)-*、-N(R10)S(O)-*、-S(O)N(R10)-*、-N(R10)S(O)2N(R10) - (O-H) -and-N (R)10)S(O)N(R10) -, wherein X represents X1And R3Where the bond is located;

X2independently at each occurrence is selected from-O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; c1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R3selected from optionally substituted C3-12Carbocyclic and optionally substituted 3 to 12 membered heterocyclic ring, wherein R3The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R3Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence is selected from: hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

R12independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12Is optionally substituted, or two substituents on a single carbon atom combine to form a 3-to 7-membered carbocyclic ring. In some embodiments, the compound of formula (IA) is represented by formula (IB):

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

In some embodiments, R20、R21、R22And R23Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10An alkyl group. In certain embodiments, R20、R21、R22And R23Each is hydrogen.

In some embodiments, R24And R25Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10Alkyl, or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring. In some embodiments, R24And R25Each is hydrogen. In some embodiments, R24And R25Together form an optionally substituted saturated C3-5A carbocyclic ring.

In some embodiments, R1Is hydrogen. In some embodiments, R2Is hydrogen.

In some embodiments, L is1Is selected from-N (R)10)C(O)-*、-S(O)2N(R10)-*、-CR10 2N(R10) C (O) -, and-X2-C1-6alkylene-X2-C1-6Alkylene-. In some embodiments, L is1Is selected from-N (R)10) C (O) -. In certain embodiments, -N (R)10) R in C (O) -)10Selected from hydrogen and C1-6An alkyl group. For example, L1May be-nhc (o) -. In some embodiments, L is1Selected from-S (O)2N(R10) - *. In certain embodiments, -S (O)2N(R10) R in10Selected from hydrogen and C1-6An alkyl group. For example, L1is-S (O)2NH-. In some embodiments, L is1is-CR10 2N(R10) C (O) -. In certain embodiments, L1Is selected from-CH2N (H) C (O) and-CH (CH)3)N(H)C(O)-*。

In some embodiments, R3Selected from optionally substituted C3-12Carbocyclic and optionally substituted 3 to 12 membered heterocyclic ring, wherein R3The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. In certain embodiments, R3Selected from optionally substituted C3-12Carbocyclic and optionally substituted 3 to 12 membered heterocyclic ring, wherein R3The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycles and 3-to 12-membered heterocycles.

In some embodiments, R3Selected from optionally substituted aryl and optionally substituted heteroaryl. In some embodiments, R3Is an optionally substituted heteroaryl group. R3May be an optionally substituted heteroaryl group substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. In certain embodiments, R3Selected from optionally substituted 6-membered heteroaryl. For example, R3Optionally substituted pyridines are possible. In some embodiments, R3Is an optionally substituted aryl group. In certain embodiments, R3Is an optionally substituted aryl group substituted with one or more substituents independently selected from the group consisting of: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. R3May be an optionally substituted phenyl group. In certain embodiments, R3Selected from pyridine, phenyl, tetrahydronaphthalene, tetrahydroquinoline, tetrahydroisoquinoline, indane, cyclopropylbenzene, cyclopentylpyridine and dihydrobenzoxaborole, any of which is optionally substituted. R3Can be selected from: any of which is optionally substituted. For example, R3Can be selected from:

in some embodiments, L is2Selected from the group consisting of-C (O) -and-C (O) NR10-. In certain embodiments, L2is-C (O) -. In certain embodiments, L2Selected from-C (O) NR10-。-C(O)NR10R in (A-C)10May be selected from hydrogen and C1-6An alkyl group. For example, L2May be-C (O) NH-.

In some embodiments, R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

In some embodiments, R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycles and 3-to 12-membered heterocycles. In some embodiments, R4Selected from: -OR10and-N (R)10)2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl. In certain embodiments, R4is-N (R)10)2。-N(R10)2R in (1)10May be independently selected at each occurrence from optionally substituted C1-6An alkyl group. In certain embodiments, -N (R)10)2R in (1)10Independently at each occurrence, is selected from the group consisting of methyl, ethyl, propyl, and butyl, each of which is optionally substituted. For example, R4Can beIn certain embodiments, L2-R4Is that

In some embodiments, R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10A carbocycle and a 3-to 10-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6Alkynyl. In some embodiments of the present invention, the substrate is,R12independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycles and 3-to 10-membered heterocycles.

In some embodiments, the compound is selected from: and salts of any thereof.

In some aspects, the present disclosure provides compounds represented by the structure of formula (IVA):

or a pharmaceutically acceptable salt thereof, wherein:

represents an optional double bond;

L12is selected from-X3-、-X3-C1-6alkylene-X3-、-X3-C2-6alkenylene-X3-and-X3-C2-6alkynylene-X3-, each of which is independently selected from R on alkylene, alkenylene or alkynylene12Optionally substituted with one or more substituents of (a);

L22independently selected from-X4-、-X4-C1-6alkylene-X4-、-X4-C2-6alkenylene-X4-and-X4-C2-6alkynylene-X4-, each of which is independently selected from R on alkylene, alkenylene or alkynylene10Optionally substituted with one or more substituents of (a);

X3and X4Independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)-、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)-、-OS(O)2-、-S(O)2O-、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from L3And hydrogen; and C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4and R8Independently selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4And R8Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence is selected from L3Hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

L3is a linker moiety wherein R1、R2And R10Is at least one of L3Or is selected from R1、R2、R4、R8、X3And X4At least one substituent on the group of (a) is L3(ii) a And

R12independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6An alkynyl group; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12Is optionally substituted or two substituents on a single carbon atom combine to form a 3-to 7-membered carbocyclic ring. In some embodiments, the compound of formula (IVA) is represented by formula (IVB):

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

In some embodiments, R1Is L3. In some embodiments, R2Is L3。

In some embodiments, L is12is-C (O) N (R)10) -. In some embodiments, -C (O) N (R)10) R in (A-C)10Selected from hydrogen, C1-6Alkyl and L3. For example, L12May be-C (O) NH-.

In some embodiments, R8Is an optionally substituted 5-or 6-membered heteroaryl. R8Can be a quilt L3Substituted optionally substituted 5 or 6 membered heteroaryl. In some embodiments, R8Is a quilt L3Substituted optionally substituted pyridines.

In some embodiments, L is22Selected from the group consisting of-C (O) -and-C (O) NR10-. In certain embodiments, L22is-C (O) -. In certain embodiments, L22is-C (O) NR10-。-C(O)NR10R in (A-C)10Can be selected from hydrogen and C1-6Alkyl and-L3. For example, L22May be-C (O) NH-.

In some embodiments, R4Selected from: -OR10and-N (R)10)2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle, a 3-to 12-membered heterocycle, an aryl and a heteroaryl, each optionally substituted with one or more substituents independently selected from: l is3Halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl. In some embodiments, R4is-N (R)10)2and-N (R)10)2R in (1)10Is selected from L3And hydrogen, and wherein-N (R)10)2At least one R of10Is L3。

In some aspects, the present disclosure provides a compound of table 1, or a salt thereof, selected from: 1.1, 1.2, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17, 1.18, 1.19, 1.20, 1.23, 1.24, 1.25, 1.26, 1.27, 1.29, 1.30, 1.31, 1.32, 1.33, 1.34, 1.35, 1.36, 1.37, 1.38, 1.39, 1.40, 1.41, 1.42, 1.43, 1.44, 1.45, 1.46, 1.48, 1.50, 1.51, 1.52, 1.53, 1.54, 1.55, 1.56, 1.57, 1.58, 1.59, 1.60, 1.63 and 1.25.

In some embodiments, the compound is further linked to a linker L3And (4) covalently bonding. In some embodiments, L is3Is a non-cleavable linker. In some embodiments, L is3Is a cleavable linker. L is3May be cleavable by lysosomal enzymes. In some embodiments, the compound is covalently linked to the antibody construct. In some embodiments, the compound is covalently linked to a targeting moiety, optionally through the linker. In some embodiments, the targeting moiety or antibody construct is capable of specifically binding to a tumor antigen. In some embodiments, the antibody construct or targeting moiety further comprises a target binding domain.

In some embodiments, L is3Is represented by the formula:is shown, in which:

L4represents the C-terminus and L of the peptide5Selected from the group consisting of a bond, alkylene, and heteroalkylene, wherein L5Is independently selected from R32And RX is a reactive moiety; and

R32independently at each occurrence, is selected from the group consisting of halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2、-NO2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2、-NO2. In some embodiments, RX comprises a leaving group. In some embodiments, RX comprises maleimide. In some embodiments, L is3And also withThe antibody construct is covalently bound. In some embodiments, the antibody construct is directed against a tumor antigen. In some embodiments, the antibody construct further comprises a target binding domain.

In some embodiments, L is3Is represented by the formula:is represented by the formula, wherein L4Represents the C-terminus and L of the peptide5Selected from the group consisting of a bond, alkylene, and heteroalkylene, wherein L5Is independently selected from R32Optionally substituted with one or more groups; RX*Comprising a bond, a succinimide moiety or a hydrolysed succinimide moiety bound to a residue of an antibody construct, wherein on RXRepresents a point of attachment to a residue of an antibody construct; and the combination of (a) and (b),

R32independently at each occurrence, is selected from the group consisting of halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2、-NO2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2、-NO2. In some embodiments, L is3The peptide of (1) comprises Val-Cit or Val-Ala.

In some aspects, the present disclosure provides a compound or salt selected from:

and salts of any thereof.

In some aspects, the present disclosure provides a compound or salt selected from:

and salts of any thereof, wherein RX*Is a bond, a succinimide moiety or a hydrolysed succinimide moiety bound to a residue of an antibody construct, wherein on RXIndicates the point of attachment to the residue of the antibody construct.

In some embodiments, L is3Is represented by the formula:wherein RX comprises a reactive moiety and n is 0-9. In some embodiments, RX comprises a leaving group. In some embodiments, RX comprises maleimide. In some embodiments, L is3As follows:wherein RX*Comprising a bond, a succinimide moiety or a hydrolysed succinimide moiety bound to a residue of an antibody construct, wherein on RXIndicates the point of attachment to a residue of the antibody construct, and n-0-9.

In some aspects, the present disclosure provides a compound or salt selected from:

and salts of any thereof.

In some aspects, the present disclosure provides a compound or salt selected from:

and salts of any thereof, wherein RX comprises a bond to a residue of the antibody construct, a succinimide moiety, or a hydrolyzed succinimide moiety, wherein RX is onIndicates the point of attachment to the residue of the antibody construct.

In some embodiments, RX comprises a succinamide moiety and is bound to a cysteine residue of the antibody construct. In some embodiments, RX comprises a hydrolyzed succinamide moiety and binds to a cysteine residue of the antibody construct. In some embodiments, the antibody construct comprises a HER2 antigen binding domain. In some embodiments, wherein the antibody construct comprises a TROP2 antigen binding domain. In some embodiments, the antibody construct is pertuzumab or an antigen-binding fragment thereof. In some embodiments, the antibody construct is trastuzumab or an antigen-binding fragment thereof. In some embodiments, the antibody construct is sapituzumab (scituzumab) or an antigen-binding fragment thereof.

In some aspects, the present disclosure provides a composition represented by formula (la):the conjugate of (a), wherein the antibody is an antibody construct, D is a compound or salt disclosed herein, and L3Are connector parts.

In some aspects, the present disclosure provides a compound of formulaThe conjugate of (1), wherein the antibody is an antibody construct and D-L3Is a compound or salt disclosed herein.

In some embodiments, the antibody construct comprises a HER2 antigen binding domain. In some embodiments, the antibody construct comprises a TROP2 antigen binding domain. In some embodiments, the antibody construct is pertuzumab or an antigen-binding fragment thereof. In some embodiments, the antibody construct is trastuzumab or an antigen-binding fragment thereof. In some embodiments, the antibody construct is saritumumab or an antigen-binding fragment thereof.

In some aspects, the present disclosure provides a pharmaceutical composition comprising a compound or salt disclosed herein and at least one pharmaceutically acceptable excipient.

In some aspects, the present disclosure provides pharmaceutical compositions comprising a conjugate disclosed herein and at least one pharmaceutically acceptable excipient.

In some embodiments, the average DAR of the conjugate is about 2 to about 8, or about 1 to about 3, or about 3 to about 5.

In some aspects, the present disclosure provides methods of killing a tumor cell in vivo comprising contacting a population of tumor cells with a conjugate disclosed herein.

In some aspects, the present disclosure provides methods for treatment comprising administering to a subject a conjugate disclosed herein.

In some aspects, the present disclosure provides methods for treatment comprising administering to a subject in need thereof a compound or salt disclosed herein.

In some aspects, the present disclosure provides methods for treating cancer comprising administering to a subject in need thereof a conjugate disclosed herein.

In some aspects, the present disclosure provides methods for treating cancer comprising administering to a subject in need thereof a compound or salt disclosed herein.

In some aspects, the present disclosure provides a compound or salt disclosed herein for use in a method of treating the body of a subject by therapy.

In some aspects, the present disclosure provides a compound or salt disclosed herein for use in a method of treating cancer.

In some aspects, the present disclosure provides a conjugate disclosed herein for use in a method of treating a body of a subject by therapy.

In some aspects, the disclosure provides a conjugate disclosed herein for use in a method of treating cancer.

In some aspects, the present disclosure provides for the reaction of benzazepinesA method of delivering a compound to a cancer cell of a subject, comprising administering a conjugate disclosed herein to a subject in need thereof.

In some aspects, the disclosure provides methods for treating cancer comprising administering an effective amount of an antibody conjugate, wherein the antibody conjugate comprises an antibody construct covalently bound to a TLR8 agonist via a linker, wherein the TLR8 agonist is directed to the K of TLR7dIs K to TLR8d2-fold or greater than 2-fold, and wherein the antibody conjugate comprises 1 to 20 TLR8 agonist/antibody constructs, preferably 1-8, 3-5, or 1-3.

In some aspects, the disclosure provides methods for treating cancer comprising administering an effective amount of an antibody conjugate, wherein the antibody conjugate comprises an antibody construct covalently bound to a TLR8 agonist via a linker, wherein the TLR8 agonist is present in an amount greater than the same compound required to exhibit agonism to TLR7Is at least one order of magnitude less than EC50To agonize TLR8, and wherein the antibody conjugate comprises 1 to 20 TLR8 agonist/antibody constructs, preferably 1-8, 3-5 or 1-3.

In some aspects, the disclosure provides methods for treating cancer comprising administering an effective amount of an antibody conjugate, wherein the antibody conjugate comprises an antibody construct covalently bound by a linker to a TLR8 agonist, wherein the TLR8 agonist comprises a benzazepine substituted with a bicyclic heterocycleAnd wherein the antibody conjugate comprises 1 to 20 TLR8 agonist/antibody constructs, preferably 1-8, 3-5 or 1-3.

In some aspects, the disclosure provides preparative formulasThe method of antibody conjugate of (1), wherein the antibody is an antibody construct, and L3-D is selected from a compound or salt disclosed herein, said method comprising reacting L3-D is contacted with the antibody construct.

In some embodiments, the antibody construct comprises a HER2 antigen binding domain. In some embodiments, the antibody construct comprises a TROP2 antigen binding domain. In some embodiments, the antibody construct is pertuzumab or an antigen-binding fragment thereof. In some embodiments, the antibody construct is trastuzumab or an antigen-binding fragment thereof. In some embodiments, the antibody construct is saritumumab or an antigen-binding fragment thereof. In some embodiments, the method further comprises purifying the antibody conjugate.

Brief Description of Drawings

The novel features of the disclosure are set forth with particularity in the appended claims. A better understanding of the features and advantages of the present disclosure will be obtained by reference to the following detailed description that sets forth illustrative aspects, in which the principles of the disclosure are utilized, and the accompanying drawings of which:

figure 1 shows that HER2-TLR8 agonist conjugates and HER2 x CD40 TLR8 agonist conjugates are active in the presence of PBMCs and SKBR3 cells expressing HER2 as measured by TNF α production.

Figure 2 shows that TROP2-TLR8 agonist conjugates are active in the presence of PBMCs and SKBR3 cells expressing HER2, as measured by TNF α production.

Figure 3 shows that the CEA-TLR8 agonist conjugate is active in the presence of monocytes and CHO cells engineered to express CEA, while neither the CEA antibody alone nor the control antibody and conjugate are active, as measured by TNF α production.

Figure 4 shows that anti-CEA-TLR 8 agonist conjugates and CEA x CD40 TLR8 agonist conjugates are active in the presence of monocytes and SKCO-1 cells, as measured by TNF α production.

Figure 5 shows that TROP TRL8 agonist conjugates are active in a dose-dependent manner on various cell lines expressing TROP 2.

Figure 6 shows that TROP2 TLR8 agonist conjugates were active in a dose-dependent manner on various cell lines expressing TROP 2.

FIG. 7 shows TNF- α induction in SKBR3 cells by aTROP2 conjugate.

Figure 8 shows TNF- α induction in MCF7 cells by the aptrop 2 conjugate.

FIG. 9 shows TNF- α induction in NCI-N87 cells by aHER2 conjugate.

FIG. 10 shows TNF- α induction in MDA-MB-453 cells with aHER2 conjugate.

Is incorporated by reference

All publications, patents, and patent applications mentioned in this specification are herein incorporated by reference to the same extent as if each individual publication, patent, or patent application was specifically and individually indicated to be incorporated by reference.

Detailed Description

While preferred embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous variations, changes, and substitutions will now occur to those skilled in the art without departing from the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. It is intended that the following claims define the scope of the invention and that methods and structures within the scope of these claims and their equivalents be covered thereby.

The present disclosure provides compounds, conjugates, and pharmaceutical compositions for treating diseases. In certain embodiments, the compounds of the present disclosure are TLR8 modulators. In certain embodiments, the compound is a TLR8 agonist. Toll-like receptors (TLRs) are a family of transmembrane receptors that are expressed on cells of the immune system such as dendritic cells, macrophages, monocytes, T cells, B cells, NK cells and mast cells, but also on a variety of non-immune cells such as endothelial cells, epithelial cells and even tumor cells. TLRs may have many isoforms, including TLR4, TLR7, and TLR 8.

TLR8 is localized to the endolysosomal/phagosomal compartment and is mainly found expressed by cells of myeloid lineage. TLR ligation results in the activation of NF-kb and IRF-dependent pathways by specific activation sequences, and responses to specific TLRs and cell types. While TLR7 is predominantly expressed in all dendritic cell subtypes (DC and here highly expressed in pDC, plasmacytoid DC) and can be induced in B cells following IFN α stimulation, TLR8 expression is rather limited to monocytes, macrophages and myeloid DCs. TLR8 signaling via MyD88 can be activated by bacterial single stranded RNA, small molecule agonists, and micrornas. Activation of TLR8 results in the production of various pro-inflammatory cytokines such as IL-6, IL-12 and TNF- α as well as enhanced expression of co-stimulatory molecules such as CD80, CD86 and chemokine receptors. In addition, TLR8 activation can induce type I interferon (IFN β) in primary human monocytes.

Several agonists targeting activation of different TLRs are useful in a variety of immunotherapies, including vaccine adjuvants and cancer immunotherapy. TLR agonists can range from simple molecules to complex macromolecules. Likewise, TLR agonists may range in size from small to large. TLR agonists may be synthetic or biosynthetic agonists. TLR agonists may also be pathogen-associated molecular pattern molecules (PAMPs).

The compounds of the present disclosure are useful for the treatment and prevention of cancer, autoimmune diseases, inflammation, sepsis, allergy, asthma, transplant rejection, graft versus host disease, immunodeficiency, and infectious diseases, such as vaccination.

In certain embodiments, the compounds may be used as single agents or in combination therapies for the treatment of cancer. In certain embodiments, the compounds are useful as single agent immunomodulators, vaccine adjuvants and in combination with conventional cancer therapies. In certain embodiments, the compounds are incorporated into conjugates that can be used, for example, to enhance an immune response. In certain embodiments, the present disclosure provides an antibody construct-benzazepineCompound conjugates and their use for the treatment of cancer.

Definition of

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. All patents and publications mentioned herein are incorporated by reference.

As used in the specification and in the claims, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

As used herein, the term "antibody" may refer to an immunoglobulin molecule capable of specifically binding to or being immunoreactive with a particular antigen. Antibodies can include, for example, polyclonal, monoclonal, genetically engineered, and antigen binding fragments thereof. The antibody can be, for example, murine, chimeric, humanized, heteroconjugated, bispecific, diabody, triabody, or tetrabody. Antigen binding fragments may include, for example, Fab ', F (ab')2Fab, Fv, rIgG and scFv.

As used herein, "antigen binding domain" refers to a region on a molecule that binds to an antigen. The antigen binding domains of the present disclosure can be domains capable of specifically binding to an antigen. The antigen binding domain may be an antigen-binding portion of an antibody or antibody fragment. The antigen binding domain may be one or more fragments of an antibody that are capable of retaining the ability to specifically bind to an antigen. The antigen binding domain may be an antigen binding fragment. The antigen binding domain can recognize a single antigen. The antigen binding domain can recognize, for example, two, three, four, five, six, seven, eight, nine, ten, or more antigens.

As used herein, "antibody construct" refers to a molecule, e.g., a protein, peptide, antibody or portion thereof, that contains an antigen binding domain and an Fc domain. The antibody construct may recognize, for example, multiple antigens.

As used herein, the abbreviations for amino acids are conventional and may be as follows: alanine (a, Ala); arginine (R, Arg); asparagine (N, Asn); aspartic acid (D, Asp); cysteine (C, Cys); glutamic acid (E, Glu); glutamine (Q, Gln); glycine (G, Gly); histidine (H, His); isoleucine (I, Ile); leucine (L, Leu); lysine (K, Lys); methionine (M, Met); phenylalanine (F, Phe); proline (P, Pro); serine (S, Ser); threonine (T, Thr); tryptophan (W, Trp); tyrosine (Y, Tyr); valine (V, Val). Other amino acids include citrulline (Cit); homocysteine (Hey); hydroxyproline (Hyp); ornithine (Orn); and thyroxine (Thx).

As used herein, "conjugate" refers to an antibody construct that is linked, e.g., covalently linked, directly or through a linker, to a compound or compound-linker described herein, e.g., a compound or salt of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC).

As used herein, an "Fc domain" may be an Fc domain from an antibody or from a non-antibody capable of binding an Fc receptor.

As used herein, "recognition" with respect to antibody interaction may refer to the association or binding between the antigen binding domain of an antibody or portion thereof and an antigen.

As used herein, "target binding domain" may refer to a construct containing an antigen binding domain from an antibody or a non-antibody capable of binding an antigen.

As used herein, a "tumor antigen" may be an antigenic substance associated with a tumor or cancer cell, and may elicit an immune response in a host.

The term "salt" or "pharmaceutically acceptable salt" refers to salts derived from various organic and inorganic counterions well known in the art. Pharmaceutically acceptable acid addition salts may be formed with inorganic and organic acids. Inorganic acids from which salts can be derived include, for example, hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, and the like. Organic acids from which salts can be derived include, for example, acetic acid, propionic acid, glycolic acid, pyruvic acid, oxalic acid, maleic acid, malonic acid, succinic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, p-toluenesulfonic acid, salicylic acid, and the like. Pharmaceutically acceptable base addition salts can be formed with inorganic and organic bases. Inorganic bases from which salts can be derived include, for example, sodium, potassium, lithium, ammonium, calcium, magnesium, iron, zinc, copper, manganese, aluminum, and the like. Organic bases from which salts can be derived include, for example, primary, secondary and tertiary amines, substituted amines including naturally occurring substituted amines, cyclic amines, basic ion exchange resins, and the like, specifically isopropylamine, trimethylamine, diethylamine, triethylamine, tripropylamine, and ethanolamine. In some embodiments, the pharmaceutically acceptable base addition salt is selected from the group consisting of ammonium, potassium, sodium, calcium, and magnesium salts.

The term "Cx-y"when used in conjunction with a chemical moiety such as alkyl, alkenyl, or alkynyl, is meant to include groups containing x to y carbons in the chain. For example, the term "C1-6Alkyl "refers to substituted or unsubstituted saturated hydrocarbon groups containing 1 to 6 carbons, including straight chain and branched alkyl groups. The term "-Cx-yAlkylene- "refers to a substituted or unsubstituted alkylene chain having from x to y carbons in the alkylene chain. For example-C1-6Alkylene-may be selected from methylene, ethylene, propylene, butylene, pentylene and hexylene, any of which is optionally substituted.

The term "Cx-yAlkenyl "and" Cx-yAlkynyl "refers to a substituted or unsubstituted unsaturated aliphatic group similar in length and possible substitution to the alkyl groups described above, but containing at least one double or triple bond, respectively. The term "-Cx-yAlkenylene- "refers to a substituted or unsubstituted alkenylene chain having from x to y carbons in the alkenylene chain. For example, -C2-6Alkenylene-may be selected from ethenylene, propenylene, butenylene, pentenylene and hexenylene, any of which is optionally substituted. The alkenylene chain may have one double bond or more than one double bond in the alkenylene chain. The term "-Cx-yAlkynylene- "refers to a substituted or unsubstituted alkynylene chain having from x to y carbons in the alkenylene chain. For example, -C2-6Alkenylene-may be selected from ethynylene, propynyl, butynyl, pentynyl and hexynyl, any of which is optionally substituted. The alkynylene chain may have one triple bond or more than one triple bond in the alkynylene chain.

"alkylene" refers to a straight divalent hydrocarbon chain connecting the remainder of the molecule to a group, consisting only of carbon and hydrogen, containing no unsaturation and preferably having from 1 to 12 carbon atoms, e.g., methylene, ethylene, propylene, butylene, and the like. The alkylene chain is connected to the rest of the molecule by single bonds and to the group by single bonds. The point of attachment of the alkylene chain to the rest of the molecule and to the group is through the terminal carbon, respectively. In other embodiments, the alkylene group contains one to five carbon atoms (i.e., C)1-C5Alkylene). In other embodiments, the alkylene group contains one to four carbon atoms (i.e., C)1-C4Alkylene). In other embodiments, the alkylene group contains one to three carbon atoms (i.e., C)1-C3Alkylene). In other embodiments, the alkylene group contains one to two carbon atoms (i.e., C)1-C2Alkylene). In other embodiments, the alkylene group contains one carbon atom (i.e., C)1Alkylene). In other embodiments, the alkylene group contains five to eight carbon atoms (i.e., C)5-C8Alkylene). In other embodiments, the alkylene group contains two to five carbon atoms (i.e., C)2-C5Alkylene). In other embodiments, the alkylene group contains three to five carbon atoms (i.e., C)3-C5Alkylene). Unless otherwise specifically stated in the specification, the alkylene chain is optionally substituted with one or more substituents such as those described herein.

"alkenylene" refers to a straight divalent hydrocarbon chain connecting the rest of the molecule to a group, consisting only of carbon and hydrogen, containing at least one carbon-carbon double bond, and preferably having from 2 to 12 carbon atoms. The alkenylene chain is connected to the rest of the molecule by a single bond and to the group by a single bond. The point of attachment of the alkenylene chain to the rest of the molecule and to the group, respectively, is through the terminal carbon. In other embodiments, alkenylene contains two to five carbon atoms (i.e., C)2-C5Alkenylene). In other embodiments, alkenylene contains two to four carbon atoms (i.e., C)2-C4Alkenylene). In other embodiments, alkenylene contains two to three carbon atoms (i.e., C)2-C3Alkenylene). In other embodiments, alkenylene contains two carbon atoms (i.e., C)2Alkenylene). In other embodiments, alkenylene contains five to eight carbon atoms (i.e., C)5-C8Alkenylene). In other embodiments, alkenylene contains three to five carbon atoms (i.e., C)3-C5Alkenylene). Unless otherwise specifically stated in the specification, the alkenylene chain is optionally substituted with one or more substituents such as those described herein.

"alkynylene" refers to a straight divalent hydrocarbon chain connecting the remainder of the molecule to a group, consisting only of carbon and hydrogen, containing at least one carbon-carbon triple bond, and preferably having from 2 to 12 carbon atoms. The alkynylene chain is connected to the rest of the molecule by a single bond and to the group by a single bond. The point of attachment of the alkynylene chain to the rest of the molecule and to the group is through the terminal carbon, respectively. In other embodiments, alkynylene contains two to five carbon atoms (i.e., C)2-C5Alkynylene). In other embodiments, alkynylene contains two to four carbon atoms (i.e., C)2-C4Alkynylene). In other placesIn embodiments, alkynylene comprises two to three carbon atoms (i.e., C)2-C3Alkynylene). In other embodiments, the alkynylene group contains two carbon atoms (i.e., C)2Alkynylene). In other embodiments, alkynylene contains five to eight carbon atoms (i.e., C)5-C8Alkynylene). In other embodiments, alkynylene contains three to five carbon atoms (i.e., C)3-C5Alkynylene). Unless otherwise specifically stated in the specification, an alkynylene chain is optionally substituted with one or more substituents such as those described herein.

"Heteroalkylidene" refers to a straight divalent hydrocarbon chain containing at least one heteroatom in the chain, no unsaturation, and preferably having 1 to 12 carbon atoms and 1 to 6 heteroatoms, such as-O-, -NH-, -S. The heteroalkylene chain is attached to the rest of the molecule by a single bond and to the group by a single bond. The point of attachment of the heteroalkylene chain to the rest of the molecule and to the group, respectively, is through the terminal atom of the chain. In other embodiments, the heteroalkylene group comprises one to five carbon atoms and one to three heteroatoms. In other embodiments, the heteroalkylene group comprises one to four carbon atoms and one to three heteroatoms. In other embodiments, the heteroalkylene group comprises one to three heteroatoms and one to two heteroatoms. In other embodiments, the heteroalkylene group comprises one to two carbon atoms and one to two heteroatoms. In other embodiments, the heteroalkylene group comprises one carbon atom and one to two heteroatoms. In other embodiments, the heteroalkylene group comprises five to eight carbon atoms and one to four heteroatoms. In other embodiments, the heteroalkylene group comprises two to five carbon atoms and one to three heteroatoms. In other embodiments, the heteroalkylene group comprises three to five carbon atoms and one to three heteroatoms. Unless otherwise specifically stated in the specification, the heteroalkylene chain is optionally substituted with one or more substituents such as those described herein.

The term "carbocyclic ring" as used herein refers to a saturated, unsaturated, or aromatic ring in which each atom of the ring is carbon. Carbocycles include 3-to 10-membered monocyclic, 6-to 12-membered bicyclic, and 6-to 12-membered bridged rings. Each ring of the bicyclic carbocycle may be selected from saturated, unsaturated and aromatic rings. In an exemplary embodiment, an aromatic ring, such as phenyl, may be fused to a saturated or unsaturated ring, such as cyclohexane, cyclopentane, or cyclohexene. Bicyclic carbocycles, when valency permits, include any combination of saturated, unsaturated, and aromatic bicyclic rings. Bicyclic carbocycles include any combination of ring sizes, such as 4-5 fused ring systems, 5-6 fused ring systems, 6-6 fused ring systems, 5-7 fused ring systems, 6-7 fused ring systems, 5-8 fused ring systems, and 6-8 fused ring systems. Exemplary carbocycles include cyclopentyl, cyclohexyl, cyclohexenyl, adamantyl, phenyl, indanyl, and naphthyl. The term "unsaturated carbocyclic ring" refers to a carbocyclic ring having at least one degree of unsaturation and excluding aromatic carbocyclic rings. Examples of unsaturated carbocyclic rings include cyclohexadiene, cyclohexene and cyclopentene.

The term "heterocycle" as used herein refers to a saturated, unsaturated, or aromatic ring containing one or more heteroatoms. Exemplary heteroatoms include N, O, Si, P, B, and S atoms. Heterocycles include 3-to 10-membered monocyclic, 6-to 12-membered bicyclic, and 6-to 12-membered bridged rings. Bicyclic heterocycles, when valency permits, include any combination of saturated, unsaturated, and aromatic bicyclic rings. In an exemplary embodiment, an aromatic ring, such as pyridyl, may be fused to a saturated or unsaturated ring, such as cyclohexane, cyclopentane, morpholine, piperidine, or cyclohexene. Bicyclic heterocycles include any combination of ring sizes, such as 4-5 fused ring systems, 5-6 fused ring systems, 6-6 fused ring systems, 5-7 fused ring systems, 6-7 fused ring systems, 5-8 fused ring systems, and 6-8 fused ring systems. The term "unsaturated heterocyclic ring" refers to a heterocyclic ring having at least one degree of unsaturation and excluding aromatic heterocyclic rings. Examples of unsaturated heterocycles include dihydropyrrole, dihydrofuran, oxazoline, pyrazoline, and dihydropyridine.

The term "heteroaryl" includes aromatic monocyclic structures, preferably 5 to 7 membered rings, more preferably 5 to 6 membered rings, the ring structure of which comprises at least one heteroatom, preferably one to four heteroatoms, more preferably one or two heteroatoms. The term "heteroaryl" also includes polycyclic ring systems having two or more rings in which two or more carbons are common to two adjacent rings in which at least one ring is heteroaromatic, e.g., the other rings can be aromatic or non-aromatic carbocyclic or heterocyclic rings. Heteroaryl groups include, for example, pyrrole, furan, thiophene, imidazole, oxazole, thiazole, pyrazole, pyridine, pyrazine, pyridazine, and pyrimidine, and the like.

The term "substituted" refers to moieties having substituents or substitutable heteroatoms replacing one or more hydrogens on carbon, such as NH or NH of a compound2. It is understood that "substituted" or "substituted.. includes the implicit proviso that such substitution is in accordance with the allowed valences of the substituted atoms and substituents and that the substitution results in a stable compound, i.e., a compound that does not spontaneously undergo transformation, such as by rearrangement, cyclization, elimination, and the like. In certain embodiments, substituted refers to moieties having substituents replacing two hydrogen atoms on the same carbon atom, such as replacing two hydrogen atoms on a single carbon with an oxo, imino, or thioxo group. As used herein, the term "substituted" is intended to include all permissible substituents of organic compounds. In a broad aspect, permissible substituents include acyclic and cyclic, branched and unbranched, carbocyclic and heterocyclic, aromatic and nonaromatic substituents of organic compounds. For suitable organic compounds, the permissible substituents can be one or more and can be the same or different.

In some embodiments, a substituent may include any of the substituents described herein, for example: halogen, hydroxy, oxo (═ O), thio (═ S), cyano (-CN), nitro (-NO), and the like2) Imino (═ N-H), oximino (═ N-OH), hydrazino (═ N-NH)2)、-Rb-ORa、-Rb-OC(O)-Ra、-Rb-OC(O)-ORa、-Rb-OC(O)-N(Ra)2、-Rb-N(Ra)2、-Rb-C(O)Ra、-Rb-C(O)ORa、-Rb-C(O)N(Ra)2、-Rb-O-Rc-C(O)N(Ra)2、-Rb-N(Ra)C(O)ORa、-Rb-N(Ra)C(O)Ra、-Rb-N(Ra)S(O)tRa(wherein t is 1 or 2), -Rb-S(O)tRa(wherein t is 1 or 2), -Rb-S(O)tORa(wherein t is 1 or 2) and-Rb-S(O)tN(Ra)2(wherein t is 1 or 2); and alkyl, alkenyl, alkynyl, aryl, aralkyl, aralkenyl, aralkynyl, cycloalkyl, cycloalkylalkyl, heterocycloalkyl, heterocycloalkylalkyl, heteroaryl, and heteroarylalkyl, any of which may be optionally substituted with: alkyl, alkenyl, alkynyl, halogen, haloalkyl, haloalkenyl, haloalkynyl, oxo (═ O), thio (═ S), cyano (═ CN), nitro (— NO), and the like2) Imino (═ N-H), oximino (═ N-OH), hydrazine (═ N-NH)2)、-Rb-ORa、-Rb-OC(O)-Ra、-Rb-OC(O)-ORa、-Rb-OC(O)-N(Ra)2、-Rb-N(Ra)2、-Rb-C(O)Ra、-Rb-C(O)ORa、-Rb-C(O)N(Ra)2、-Rb-O-Rc-C(O)N(Ra)2、-Rb-N(Ra)C(O)ORa、-Rb-N(Ra)C(O)Ra、-Rb-N(Ra)S(O)tRa(wherein t is 1 or 2), -Rb-S(O)tRa(wherein t is 1 or 2), -Rb-S(O)tORa(wherein t is 1 or 2) and-Rb-S(O)tN(Ra)2(wherein t is 1 or 2); wherein each RaIndependently selected from hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocycloalkyl, heterocycloalkylalkyl, heteroaryl or heteroarylalkyl, wherein each R isaOptionally substituted, where valency permits, by: alkyl, alkenyl, alkynyl, halogen, haloalkyl, haloalkenyl, haloalkynyl, oxo (═ O), thio (═ S), cyano (═ CN), nitro (— NO), and the like2) Imino (═ N-H), oximino (═ N-OH), hydrazine (═ N-NH)2)、-Rb-ORa、-Rb-OC(O)-Ra、-Rb-OC(O)-ORa、

-Rb-OC(O)-N(Ra)2、-Rb-N(Ra)2、-Rb-C(O)Ra、-Rb-C(O)ORa、-Rb-C(O)N(Ra)2、-Rb-O-Rc-C(O)N(Ra)2、-Rb-N(Ra)C(O)ORa、-Rb-N(Ra)C(O)Ra、-Rb-N(Ra)S(O)tRa(wherein t is 1 or 2), -Rb-S(O)tRa(wherein t is 1 or 2), -Rb-S(O)tORa(wherein t is 1 or 2) and-Rb-S(O)tN(Ra)2(wherein t is 1 or 2); and wherein each RbIndependently selected from a direct bond or a linear or branched alkylene, alkenylene or alkynylene chain and each RcIs a linear or branched alkylene, alkenylene or alkynylene chain.

One skilled in the art will appreciate that the substituted base may itself be substituted, if appropriate. Unless specifically stated as "unsubstituted," references herein to chemical moieties are understood to include substituted variations. For example, reference to a "heteroaryl" group or moiety implicitly includes both substituted and unsubstituted variants, unless otherwise indicated.

The phrases "parenteral administration" and "parenterally administered" as used herein mean modes of administration other than enteral and topical administration, typically by injection, and include, but are not limited to, intravenous, intramuscular, intraarterial, intrathecal, intracapsular, intraorbital, intracardiac, intradermal, intraperitoneal, transtracheal, subcutaneous, subcuticular, intraarticular, subcapsular, subarachnoid, intraspinal and intrasternal injection and infusion.

The phrase "pharmaceutically acceptable" is employed herein to refer to those compounds, materials, compositions, and/or dosage forms which are, within the scope of sound medical judgment, suitable for use in contact with the tissues of human beings and animals without excessive toxicity, irritation, allergic response, or other problem or complication, commensurate with a reasonable benefit/risk ratio.

The phrase "pharmaceutically acceptable excipient" or "pharmaceutically acceptable carrier" as used herein means a pharmaceutically acceptable material, composition or vehicle, such as a liquid or solid filler, diluent, excipient, solvent or encapsulating material. Each carrier must be "acceptable" in the sense of being compatible with the other ingredients of the formulation and not injurious to the patient. Some examples of materials that can be used as pharmaceutically acceptable carriers include: (1) sugars such as lactose, glucose and sucrose; (2) starches, such as corn starch and potato starch; (3) cellulose and its derivatives, such as sodium carboxymethyl cellulose, ethyl cellulose and cellulose acetate; (4) powdered gum tragacanth; (5) malt; (6) gelatin; (7) talc; (8) excipients, such as cocoa butter and suppository waxes; (9) oils such as peanut oil, cottonseed oil, safflower oil, sesame oil, olive oil, corn oil and soybean oil; (10) glycols, such as propylene glycol; (11) polyols such as glycerol, sorbitol, mannitol and polyethylene glycol; (12) esters, such as ethyl oleate and ethyl laurate; (13) agar; (14) buffering agents such as magnesium hydroxide and aluminum hydroxide; (15) alginic acid; (16) pyrogen-free water; (17) isotonic saline; (18) ringer's solution; (19) ethanol; (20) a phosphate buffer solution; and (21) other non-toxic compatible materials used in pharmaceutical formulations.

The phrase "targeting moiety" refers to a structure that has selective affinity for a target molecule relative to other non-target molecules. The targeting moiety binds to the target molecule. The targeting moiety may include, for example, an antibody, a peptide, a ligand, a receptor, or a binding moiety thereof. The target biomolecule may be a biological receptor or other structure of a cell, such as a tumor antigen.

Antibody constructs

Disclosed herein are antibody constructs that can be used with the compounds of the present disclosure. In certain embodiments, a compound of the present disclosure is linked, e.g., covalently linked, to a compound of the present disclosure, either directly or through a linker, to form a conjugate. In certain embodiments, the conjugates of the present disclosure are represented by the formula:

wherein A is an antibody construct, L3Is a linker, D is a compound or salt of any one of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB) or (IIIC), or L3-D is a compound or salt of any one of formulae (IVA), (IVB) or (IVC) and n is 1 to 20. In certain embodiments, n is 1 to 10, such as 1 to 9, such as 1 to 8, such as 2 to 8, such as 1 to 6, such as 3 to 5, or such as 1 to 3. In certain embodiments, n is 4. In certain embodiments, each D or L3-D is independently selected from formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB) or (IIIC) or formula (IVA), (IVB) or (IVC).

In certain embodiments, a compound or salt of the present disclosure, such as a compound or salt of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC), may be referred to herein as a drug, D, benzazepine, or pharmaceutically acceptable salt thereofA compound, an immunostimulatory compound, an ISC or a payload, particularly when provided as part of a conjugate. "LP", "linker-payload", "L3-D "or" compound-linker "may be used herein to refer to a compound or salt of the disclosure bound to a linker.

An antibody construct of the present disclosure can contain, for example, two, three, four, five, six, seven, eight, nine, ten, or more antigen binding domains. The antibody construct may contain two antigen binding domains, wherein each antigen binding domain may recognize the same antigen. The antibody construct may contain two antigen binding domains, wherein each antigen binding domain may recognize a different antigen. The antigen binding domain may be in a scaffold, wherein the scaffold is a support framework for the antigen binding domain. The antigen binding domain may be in a non-antibody scaffold. The antigen binding domain may be in an antibody scaffold. The antibody construct may comprise an antigen binding domain in a scaffold. The antibody construct may comprise an Fc fusion protein. In some embodiments, the antibody construct is an Fc fusion protein. The antigen binding domain is capable of specifically binding to a tumor antigen. The antigen binding domain is capable of specifically binding to an antigen that is at least 80%, at least 90%, at least 95%, at least 99%, or 100% homologous to a tumor antigen. The antigen binding domain is capable of specifically binding to an antigen on an Antigen Presenting Cell (APC). The antigen binding domain is capable of specifically binding to an antigen that is at least 80%, at least 90%, at least 95%, at least 99%, or 100% homologous to an antigen on an Antigen Presenting Cell (APC).

The antigen binding domain of an antibody may comprise one or more Light Chain (LC) CDRs and one or more Heavy Chain (HC) CDRs. For example, the antibody binding domain of an antibody may include one or more of the following: light chain complementarity determining region 1(LCCDR1), light chain complementarity determining region 2(LC CDR2), or light chain complementarity determining region 3(LC CDR 3). As another example, an antibody binding domain may include one or more of the following: heavy chain complementarity determining region 1(HC CDR1), heavy chain complementarity determining region 2(HC CDR2), or heavy chain complementarity determining region 3(HC CDR 3). As another example, the antibody binding domain of an antibody may include one or more of the following: LC CDR1, LC CDR2, LC CDR3, HC CDR1, HC CDR2 and HC CDR 3.

The antigen binding domain of the antibody construct may be selected from any domain that binds an antigen, including but not limited to monoclonal antibodies, polyclonal antibodies, recombinant antibodies, or antigen binding fragments thereof, such as a heavy chain variable domain (V)H) And a light chain variable domain (V)L) DARPin, affimer, avimer, knottin, monoclonal, affinity clamp, ectodomain, receptor, T cell receptor, or recombinant T cell receptor.

The antigen binding domain of the antibody construct may be at least 80% homologous to an antigen binding domain selected from, but not limited to: monoclonal, polyclonal, recombinant antibodies or functional fragments thereof, e.g., heavy chain variable domain (V)H) And a light chain variable domain (V)L) DARPin, affimer, avimer, knottin, single antibody, affinity clip, ectodomain, receptor, cytokine, ligand, immunocytokine, T cell receptor, or heavyGroup T cell receptors.

In certain embodiments, the antibody constructs of the present disclosure comprise an Fc domain, which may further comprise an Fc domain, wherein the Fc domain may be part of an Fc region that interacts with an Fc receptor. The Fc domain of the antibody construct may interact with an Fc-receptor (FcR) found on immune cells. The Fc domain may also mediate interactions between effector molecules and cells, which may lead to activation of the immune system. The Fc domain may be derived from an IgG, IgA, or IgD antibody isotype and may comprise two identical protein fragments derived from the second and third constant domains of an antibody heavy chain. In Fc domains derived from IgG antibody isotypes, the Fc region may contain highly conserved N-glycosylation sites that may be necessary for FcR-mediated downstream effects. The Fc domain may be derived from an IgM or IgE antibody isotype, wherein the Fc domain may comprise three heavy chain constant domains.

Fc domains can interact with different types of fcrs. Different types of fcrs may include, for example, Fc γ RI, Fc γ RIIA, Fc γ RIIB, Fc γ RIIIA, Fc γ RIIIB, Fc α RI, Fc μ R, Fc ∈ RI, Fc ∈ RII, and FcRn. Fcrs may be located on the membrane of certain immune cells including, for example, B lymphocytes, natural killer cells, macrophages, neutrophils, follicular dendritic cells, eosinophils, basophils, platelets, and mast cells. Once the Fc domain is engaged with the FcR, the FcR may initiate functions including, for example, clearance of the antigen-antibody complex via receptor-mediated endocytosis, antibody-dependent cell-mediated cytotoxicity (ADCC), antibody-dependent cell-mediated phagocytosis (ADCP), and ligand-triggered transmembrane signaling that may lead to secretion, exocytosis, and alterations in cellular metabolism. FcR can deliver a signal when it is aggregated at the cell surface by antibodies and multivalent antigens. Aggregation of fcrs bearing the Immunoreceptor Tyrosine Activation Motif (ITAM) can activate SRC family tyrosine kinases and SYK family tyrosine kinases in turn. ITAMs comprise two repeats of the YxxL sequence, flanked by seven variable residues. SRC and SYK kinases can link the transduced signal to a common activation pathway.

Antibodies of the present disclosure may be composed of two identical protein light chains and two identical protein heavy chains, all of which are covalently linked together by disulfide bonds. The N-terminal regions of the light and heavy chains together may form the antigen recognition site of the antibody. Structurally, various functions of an antibody can be confined to discrete protein domains (i.e., regions). The site that can recognize and bind an antigen may be composed of three Complementarity Determining Regions (CDRs), which may be located within the variable heavy chain region and the variable light chain region at the N-termini of the heavy and light chains. The constant domains may provide the general framework of an antibody and may not be directly involved in binding of the antibody to an antigen, but may be involved in various effector functions, such as participation of the antibody in antibody-dependent cellular cytotoxicity, and may bind to Fc receptors. The constant domain may include an Fc region. The constant domain may comprise an Fc domain. The domains of native light and heavy chains may have the same general structure, and each domain may include four framework regions, the sequences of which may be slightly conserved, connected by three hypervariable regions or CDRs. The four Framework Regions (FRs) may adopt predominantly a β -sheet conformation, and the CDRs may form a loop junction, and in some aspects form part of the β -sheet structure. The CDRs in each chain can be held in close proximity by the framework regions, and together with the CDRs from the other chain can contribute to the antigen binding site formation.

An antibody construct may comprise an amino acid sequence light chain having at least one, two, three, four, five, six, seven, eight, nine or ten modifications, and in certain embodiments no more than 40, 35, 30, 25, 20, 15 or 10 amino acid sequence modifications relative to the native or original amino acid sequence. An antibody construct may comprise an amino acid sequence heavy chain having at least one, two, three, four, five, six, seven, eight, nine or ten modifications, and in certain embodiments no more than 40, 35, 30, 25, 20, 15 or 10 amino acid sequence modifications relative to the native or original amino acid sequence.

The antibodies of the antibody construct may comprise any type of antibody which may be classified into different classes of immunoglobulins, such as IgA, IgD, IgE, IgG and IgM. Several different classes can be further divided into isotypes, such as IgG1, IgG2, IgG3, IgG4, IgA1, and IgA 2. The antibody may further comprise a light chain and a heavy chain, typically more than one chain. The heavy chain constant regions (Fc) corresponding to different classes of immunoglobulins can be alpha, delta, epsilon, gamma, and mu, respectively. The light chain may be one of kappa or lambda based on the amino acid sequence of the constant domain. The Fc region may contain an Fc domain. Fc receptors can bind Fc domains. Antibody constructs may also include any fragment or recombinant form thereof, including but not limited to single chain variable fragments (scFv), 'T-bodies', anti-calains, centyrins, affibodies, domain antibodies or peptibodies.

The antibody construct may comprise an antibody fragment. The antibody fragment may comprise (i) a Fab fragment, a V fragmentL、VH、CLAnd CH1Monovalent fragments consisting of domains; (ii) f (ab')2A fragment, a bivalent fragment comprising two Fab fragments connected by a disulfide bridge at the hinge region; and (iii) Fv fragments consisting of V of one arm of an antibodyLAnd VHDomain composition. Despite the two domains V of the Fv fragmentLAnd VHCan be encoded by separate genes, but they can be joined by synthetic linkers to make a single protein chain, in which VLAnd VHThe regions pair to form monovalent molecules.

F(ab')2And Fab' portions may be produced by genetic engineering or by treating an immunoglobulin (e.g., a monoclonal antibody) with proteases such as pepsin and papain, and may include antibody fragments produced by digestion of the immunoglobulin near the disulfide bond between the hinge regions present in each of the two H chains. The Fab fragment may also contain the constant domain of the light chain and the first constant domain of the heavy chain (C)H1). Fab' fragments may differ from Fab fragments in the heavy chain CH1The carboxy terminus of the domain is supplemented with a small number of residues, including one or more cysteines from the antibody hinge region.

Fv is probably the smallest antibody fragment containing the entire antigen-recognition and antigen-binding site. The region may be composed of a heavy chain and a heavy chain in close non-covalent associationThe dimer of light chain variable domains. In this configuration, the three hypervariable regions of each variable domain may interact to form a hypervariable region at VH-VLThe surface of the dimer defines the antigen-binding site. A single variable domain (or half of an Fv comprising only three hypervariable regions specific for an antigen) can recognize and bind antigen, although binding may have a lower affinity than that of the entire binding site.

The antibody can include an Fc region comprising an Fc domain. The Fc domain of an antibody can interact with fcrs present on immune cells. The Fc domain may also mediate interactions between effector molecules and cells, which may lead to activation of the immune system. In IgG, IgA, and IgD antibody isotypes, the Fc region may comprise two identical protein fragments, which may be derived from the second and third constant domains of an antibody heavy chain. In IgM and IgE antibody isotypes, the Fc region may comprise three heavy chain constant domains. In IgG antibody isotypes, the Fc region may contain highly conserved N-glycosylation sites, which may be important for FcR-mediated downstream effects.

An antibody as used herein may be "humanized". Humanized forms of non-human (e.g., murine) antibodies can be chimeric immunoglobulins, immunoglobulin chains or fragments thereof (e.g., Fv, Fab ', F (ab' of an antibody)) which may contain minimal sequence derived from non-human immunoglobulin2Or other target binding sub-domain). Typically, a humanized antibody may comprise substantially all of at least one and typically two variable domains, in which all or substantially all of the CDR regions correspond to those of a non-human immunoglobulin and all or substantially all of the framework regions are those of a human immunoglobulin sequence. The humanized antibody may also comprise at least a portion of an immunoglobulin constant region (Fc), typically a portion of a human immunoglobulin consensus sequence.

The antibodies described herein can be human antibodies. As used herein, "human antibody" may include antibodies having, for example, the amino acid sequence of a human immunoglobulin, and may include antibodies isolated from a human immunoglobulin library or one or more human immunoglobulin transgenic animals that do not express endogenous immunoglobulins. Human antibodies can be produced using transgenic mice that are incapable of expressing functional endogenous immunoglobulins, but can express human immunoglobulin genes. Guided selection can be used to generate fully human antibodies that recognize selected epitopes. In this method, a selected non-human monoclonal antibody, such as a mouse antibody, can be used to guide the selection of fully human antibodies that recognize the same epitope.

The antibodies described herein can be bispecific antibodies or dual variable domain antibodies (DVDs). Bispecific and DVD antibodies can be monoclonal, typically human or humanized antibodies capable of having binding specificity for at least two different antigens.

The antibodies described herein can be derivatized antibodies. For example, derivatized antibodies may be modified by glycosylation, acetylation, pegylation, phosphorylation, amidation, derivatization by known protecting/blocking groups, proteolytic cleavage, linkage to cellular ligands, or other proteins.

The antibodies described herein can have a sequence that has been modified to alter at least one constant region-mediated biological effector function relative to the corresponding wild-type sequence. For example, in some embodiments, an antibody can be modified to reduce at least one constant region-mediated biological effector function, such as, for example, reduced binding to an Fc receptor (FcR), relative to an unmodified antibody. FcR binding can be reduced, for example, by mutating an immunoglobulin constant region segment of the antibody at a specific region necessary for FcR interaction.

An antibody or Fc domain as described herein may be modified to obtain or improve at least one constant region-mediated biological effector function, such as to enhance fcyr interactions, relative to an unmodified antibody or Fc domain. For example, antibodies having constant regions that bind Fc γ RIIA, Fc γ RIIB, and/or Fc γ RIIIA with greater affinity than the corresponding wild-type constant region can be produced according to the methods described herein. Fc domains that bind Fc γ RIIA, Fc γ RIIB, and/or Fc γ RIIIA with greater affinity than the corresponding wild-type Fc domain can be produced according to the methods described herein.

In certain embodiments, the antibody construct comprises an antigen binding domain and an IgG Fc domain, wherein the K to which the antigen binding domain binds to the first antigen in the presence of the immunostimulatory compounddLess than about 100nM and no greater than the K at which the antigen binding domain binds to the first antigen in the absence of the immunostimulatory compounddAbout 100 times higher. In certain embodiments, the antibody construct comprises a K that binds an IgG Fc domain to an Fc receptor in the presence of an immunostimulatory compounddNo more than K for binding of IgG Fc domain to Fc receptor in absence of immunostimulatory compounddAbout 100 times higher. In certain embodiments, the first antigen is selected from the group consisting of CD5, CD19, CD20, CD25, CD37, CD30, CD33, CD40, CD45, CAMPATH-1, BCMA, CS-1, PD-L1, B7-H3, B7-DC, HLD-DR, carcinoembryonic antigen (CEA), TAG-72, EpCAM, MUC1, folate-binding protein, A33, G250, Prostate Specific Membrane Antigen (PSMA), ferritin, GD2, GD3, GM2, LeyCA-125, CA19-9, epidermal growth factor, p185HER2, IL-2 receptor, EGFRvIII (de2-7 EGFR), fibroblast activation protein, tenascin, metalloprotease, endosialin, vascular endothelial growth factor, avB3, WT1, LMP2, HPV E6, HPV E7, HER-2/neu, MAGE A3, p53 non-mutant, NY-ESO-1, MelanA/MART1, Ras mutant, gp100, p53 mutant, PR1, bcr-abl, tyrosinase, survivin, PSA, hTERT, sarcoma translocation breakpoint protein, EphA2, PAP, ML-IAP, AFP, ERG, NA17, PAX3, androgen receptor, PSTn 1, polysialic, MYCN, TRPC, glycosyl-2, GM1, fucoidin 1, BCA 5, PGM sLe, CYP 58Tn, PGM 5, PGM, RG-III, CYP1, CYP 23, PLGA-7, CYP-7, and Tn 5, ETV6-AML, NY-BR-1, RGS5, SART3, STn, carbonic anhydrase IX, PAX5, OY-TESL sperm protein 17, LCK, HMWMAA, AKAP-4, SSX2, XAGE 1, Legumain (Legumain), Tie 3, VEGFR2, MAD-CT-1, PDGFR-B, MAD-CT-2, ROR2, TRAIL1, MUC16, MAGE A4, MAGE C2, GAGE, EGFR, CMET, HER3, MUC 3, CA 3, NAPI 23, TMOP 3, PROP N3, CLDN18.2, CLorf186, RON, LY 63, FRA, DLL3, PTLIK 3, STRA 3, TMRA 3, PRSS3, PRTMDESS 3, VTTM 3, VTCLDFT 3, VTROV 3, FOROCN 3, or related antigens. In thatIn certain embodiments, the first antigen is expressed on an immune cell. In certain embodiments, the first antigen is CD40, HER2, or TROP 2. In certain embodiments, the first antigen is HER2 or TROP 2.

In certain embodiments, the antibody construct comprises a human or humanized antibody or antigen-binding portion thereof, such as a humanized CD40, a humanized HER2, or a humanized TROP2 antibody. In certain embodiments, the antibody construct comprises a TROP2 antibody, such as safrole or an antigen-binding portion thereof. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of sacituxumab (SEQ ID NOS: 3 and 4). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of fosituzumab (SEQ ID NO:4), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of fosituzumab, as determined by the Kabat index. In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of fosotuzumab (SEQ ID NO:4), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of fosotuzumab (SEQ ID NO:3), as determined by imgt (immunogenetics). In certain embodiments, the antibody construct comprises a HER2 antibody, such as pertuzumab, trastuzumab, or an antigen-binding portion thereof. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of pertuzumab (SEQ ID NOS: 1 and 2). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of pertuzumab (SEQ ID NO:2), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of pertuzumab (SEQ ID NO:1), as determined by the Kabat index. In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of pertuzumab (SEQ ID NO:2), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of pertuzumab (SEQ ID NO:1), as determined by IMGT. In certain embodiments, the antibody construct comprises the variable region sequences of the heavy and light chains of trastuzumab (SEQ ID NOS: 7 and 8). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of trastuzumab (SEQ ID NO:8), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of trastuzumab (SEQ ID NO:7), as determined by the Kabat index. In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of trastuzumab (SEQ ID NO:8), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of trastuzumab (SEQ ID NO:7), as determined by IMGT. In certain embodiments, the antibody construct comprises a CD40 antibody or antigen-binding portion thereof. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of sacituxumab (SEQ ID NOS: 3 and 4). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of fostuzumab (SEQ ID NO:4), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of fostuzumab (SEQ ID NO:3), as determined by the Kabat index.

In certain embodiments, the antibody construct comprises a Liv-1 antibody, such as ladratuzumab, huLiv1-14(WO 2012078688), Liv1-1.7a4(US 2011/0117013), huLiv1-22(WO 2012078688), or an antigen-binding portion thereof. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of ladiratuzumab (SEQ ID NOS: 5 and 6). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of ladratuzumab (SEQ ID NO:6), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of ladratuzumab (SEQ ID NO:5), as determined by the Kabat index. In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region (SEQ ID NO:6) of ladratuzumab and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region (SEQ ID NO:5) of ladratuzumab as determined by IMGT. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of huLiv1-14 (SEQ ID NOS: 17 and 18). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of huLiv1-14 (SEQ ID NO:18), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of huLiv1-14 (SEQ ID NO:17), as determined by the Kabat index. In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of huLiv1-14 (SEQ ID NO:18), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of huLiv1-14 (SEQ ID NO:17), as determined by IMGT. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of Liv1-1.7A4 (SEQ ID NOS: 19 and 20). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region (SEQ ID NO:20) of Liv1-1.7a4, and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region (SEQ ID NO:19) of Liv1-1.7a4, as determined by the Kabat index. In certain embodiments, the antibody construct comprises a humanized antibody or antigen-binding fragment thereof comprising LC CDR1, LC CDR2 and LC CDR3 of the light chain variable region (SEQ ID NO:20) of Liv1-1.7a4, and HC CDR1, HC CDR2 and HC CDR3 of the heavy chain variable region (SEQ ID NO:19) of Liv1-1.7a4, as determined by the Kabat index. In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region (SEQ ID NO:20) of Liv1-1.7a4, and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region (SEQ ID NO:19) of Liv1-1.7a4, as determined by IMGT. In certain embodiments, the antibody construct comprises a humanized antibody or antigen-binding fragment thereof comprising LC CDR1, LC CDR2 and LC CDR3 of the light chain variable region (SEQ ID NO:20) of Liv1-1.7a4, and HC CDR1, HCCDR2 and HC CDR3 of the heavy chain variable region (SEQ ID NO:19) of Liv1-1.7a4, as determined by IMGT. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of huLiv1-22 (SEQ ID NOS: 21 and 22). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of huLiv1-22 (SEQ ID NO:22), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of huLiv1-22 (SEQ ID NO:21), as determined by the Kabat index. In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of huLiv1-22 (SEQ ID NO:22), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of huLiv1-22 (SEQ ID NO:21), as determined by IMGT.

In certain embodiments, the antibody construct comprises a MUC16 antibody, such as sofotuzumab (sofituzumab), 4H11(US2013/0171152), 4H5(US2013/0171152), or an antigen-binding portion thereof. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of Sofostuzumab (SEQ ID NOS: 23 and 24). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of sofotuzumab (SEQ ID NO:24), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of sofotuzumab (SEQ ID NO:23), as determined by the Kabat index. In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of Sofostuzumab (SEQ ID NO:24), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of Sofostuzumab (SEQ ID NO:23), as determined by IMGT. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of antibody 4H11 (SEQ ID NOS: 13 and 14). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of antibody 4H11 (SEQ ID NO:14), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of antibody 4H11 (SEQ ID NO:13), as determined by the Kabat index. In certain embodiments, the antibody construct comprises a humanized antibody comprising LC CDR1, LC CDR2 and LC CDR3 of the light chain variable region of antibody 4H11 (SEQ ID NO:14) and HC CDR1, HC CDR2 and HC CDR3 of the heavy chain variable region of antibody 4H11 (SEQ ID NO:13), as determined by the Kabat index. In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region (SEQ ID NO:14) of antibody 4H11, and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region (SEQ ID NO:13) of 4H11, as determined by IMGT. In certain embodiments, the antibody construct comprises a humanized antibody or antigen-binding fragment thereof comprising LC CDR1, LC CDR2 and LC CDR3 of the light chain variable region (SEQ ID NO:14) of antibody 4H11, and HC CDR1, HC CDR2 and HC CDR3 of the heavy chain variable region (SEQ ID NO:13) of 4H11, as determined by IMGT. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of antibody 4A5 (SEQ ID NOS: 15 and 16). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of antibody 4a5 (SEQ ID NO:16), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of 4a5 (SEQ ID NO:15), as determined by the Kabat index. In certain embodiments, the antibody construct comprises a humanized antibody or antigen-binding fragment thereof comprising LC CDR1, LC CDR2 and LC CDR3 of the light chain variable region (SEQ ID NO:16) of antibody 4a5, and HC CDR1, HC CDR2 and HC CDR3 of the heavy chain variable region (SEQ ID NO:15) of antibody 4a5, as determined by the Kabat index. In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of antibody 4a5 (SEQ ID NO:16), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of antibody 4a5 (SEQ ID NO:15), as determined by IMGT. In certain embodiments, the antibody construct comprises a humanized antibody or antigen-binding fragment thereof comprising LC CDR1, LC CDR2 and LC CDR3 of the light chain variable region of 4a5 (SEQ ID NO:16), and HC CDR1, HC CDR2 and HC CDR3 of the heavy chain variable region of 4a5 (SEQ ID NO:15), as determined by IMGT.

In certain embodiments, the antibody construct comprises a PD-L1 antibody, such as attentizumab (atezolizumab), MDX-1105(WO 2007/005874), or an antigen-binding portion thereof. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of attentizumab (SEQ ID NOS: 11 and 12). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of attentizumab (SEQ ID NO:12), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of attentizumab (SEQ ID NO:11), as determined by the Kabat index. In certain embodiments, the antibody construct comprises the LCCDR1, LC CDR2, and LC CDR3 of the light chain variable region of attentizumab (SEQ ID NO:12), and the HC CDR1, HCCDR2, and HC CDR3 of the heavy chain variable region of attentizumab (SEQ ID NO:11), as determined by IMGT. In certain embodiments, the antibody construct comprises the heavy and light chain variable region sequences of MDX-1105 (SEQ ID NOS: 9 and 10). In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of MDX-1105 (SEQ ID NO:10), and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of MDX-1105 (SEQ ID NO:9), as determined by the Kabat index. In certain embodiments, the antibody construct comprises a humanized antibody or antigen-binding fragment thereof comprising LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region of MDX-1105 (SEQ ID NO:10), and HCCDR1, HC CDR2, and HC CDR3 of the heavy chain variable region of MDX-1105 (SEQ ID NO:9), as determined by the Kabat index. In certain embodiments, the antibody construct comprises LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region (SEQ ID NO:10) of MDX-1105 and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region (SEQ ID NO:9) of MDX-1105, as determined by IMGT. In certain embodiments, the antibody construct comprises a humanized antibody or antigen-binding fragment thereof comprising LC CDR1, LC CDR2, and LC CDR3 of the light chain variable region (SEQ ID NO:10) of MDX-1105 and HC CDR1, HC CDR2, and HC CDR3 of the heavy chain variable region (SEQ ID NO:9) of MDX-1105, as determined by IMGT.

The antibody construct may comprise an antibody having at least one amino acid residue modification. The modification may be a substitution, addition, mutation, deletion, or the like. Antibody modifications may be insertions of unnatural amino acids.

Exemplary antibody construct VHSequence and VLThe sequences are shown in Table A below.

Table a: exemplary antibody constructs VH sequences and VL sequences

Target binding domains of antibody constructs

The antibody construct may further comprise a target binding domain. The target binding domain may comprise a domain that binds a target. The target may be an antigen. The target binding domain may comprise an antigen binding domain. The target binding domain may be a domain capable of specifically binding to an antigen. The target binding domain may be an antigen binding portion of an antibody or antibody fragment. The target binding domain may be one or more fragments of an antibody that are capable of retaining the ability to specifically bind to an antigen. The target binding domain may be any antigen binding fragment. The target binding domain may be in a scaffold, wherein the scaffold is a support framework for the antigen binding domain. The target binding domain may comprise an antigen binding domain in a scaffold.

The target binding domain may comprise an antigen binding domain, which may refer to a portion of an antibody comprising an antigen recognition portion, i.e. an epitope, of an epitope of an antibody sufficient to confer recognition and binding of the target, e.g. an antigen, to the antigen recognition portion. The target binding domain may comprise an antigen binding domain of an antibody. In certain embodiments, the target binding domain is a CD40 agonist.

Fv can be the smallest antibody fragment that contains the entire antigen recognition and antigen binding site. The region may consist of a dimer of one heavy and one light chain variable domain in close non-covalent association. In this configuration, the three hypervariable regions of each variable domain may interact to define VH-VLAntigen binding sites on the surface of the dimer. A single variable domain (or half of an Fv comprising only three hypervariable regions specific for an antigen) is capable of recognizing and binding antigen, albeit with lower affinity than the entire binding site.

The target binding domain may be at least 80% homologous to an antigen binding domain selected from, but not limited to: monoclonal, polyclonal, recombinant antibodies or functional fragments thereof, e.g. heavy chain variable domain (V)H) And a light chain variable domain (V)L) Single-chain variable fragment (scFv), DARPin, affimer, avimer, knottin, and the like,A single antibody, an affinity clip, an extracellular domain of a receptor, a cytokine, a ligand, an immunocytokine, a T cell receptor, or a recombinant T cell receptor.

The target binding domain may be linked to an antibody construct. For example, the antibody construct may be fused to a target binding domain to produce an antibody construct target binding domain fusion. The antibody construct-target binding domain fusion may be the result of in-frame expression of the nucleic acid sequence of the target binding domain together with the nucleic acid sequence of the antibody construct. The antibody construct-target binding domain fusion may be the result of an in-frame genetic nucleotide sequence or a contiguous peptide sequence encoding the antibody construct and target binding domain. As another example, the target binding domain may be linked to an antibody construct. The target binding domain may be linked to the antibody construct by chemical conjugation. The target binding domain may be linked to an end of the Fc region. The target binding domain may be linked to an end of the Fc region. The target binding domain may be linked to an end of the antibody construct. The target binding domain may be linked to the end of an antibody. The target binding domain may be linked to the light chain of the antibody. The target binding domain may be linked to the end of the light chain of the antibody. The target binding domain may be linked to the heavy chain of the antibody. The target binding domain may be linked to the end of the heavy chain of the antibody. The terminus may be the C-terminus. The antibody construct may be linked to 1, 2, 3 and/or 4 target binding domains. The target binding domain may direct the antibody construct, for example, to a particular cell or cell type. The target binding domain of the antibody construct may be selected to recognize an antigen, such as an antigen expressed on an immune cell. The antigen may be a peptide or a fragment thereof. The antigen may be expressed on an antigen presenting cell. The antigen may be expressed on dendritic cells, macrophages or B cells. As another example, the antigen may be a tumor antigen. The tumor antigen can be any tumor antigen described herein. When multiple target binding domains are linked to an antibody construct, the target binding domains may bind to the same antigen. When multiple target binding domains are linked to an antibody construct, the target binding domains may bind to different antigens.

In certain embodiments, the antibody constructs described herein specifically bind to a second antigen. In certain embodiments, the target binding domain is linked, e.g., covalently bound, to the antibody construct at the C-terminus of the Fc domain.

Compound (I)

The following is a discussion of compounds and salts thereof that may be used in the methods of the present disclosure. Compounds and salts described in formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB) and (IIIC) may be linked to linker L3Covalently bound, the linker L3May be further covalently bound to an antibody construct. Compounds and salts described in formulae (IVA), (IVB), (IVC) and linker L3Covalently bound, the linker L3May be further covalently bound to an antibody construct.

In some aspects, the present disclosure provides compounds represented by the structure of formula (IA):

or a pharmaceutically acceptable salt thereof, wherein:

represents an optional double bond;

L1is selected from-X1-、-X2-C1-6alkylene-X2-C1-6Alkylene-, -X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on alkylene, alkenylene or alkynylene12Optionally substituted;

L2is selected from-X2-、-X2-C1-6alkylene-X2-、-X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on alkylene, alkenylene or alkynylene12Optionally substituted;

X1selected from-S-, -N (R)10)-*、-C(O)O-*、-OC(O)-*、-OC(O)O-*、-C(O)N(R10)C(O)-*、-C(O)N(R10)C(O)N(R10)*、-N(R10)C(O)-*、-CR10 2N(R10)C(O)-*、-N(R10)C(O)N(R10)-*、-N(R10)C(O)O-*、-OC(O)N(R10)-*、-C(NR10)-*、-N(R10)C(NR10)-*、-C(NR10)N(R10)-*、-N(R10)C(NR10)N(R10)-*、-S(O)2-*、-OS(O)-*、-S(O)O-*、-S(O)、-OS(O)2-*、-S(O)2O*、-N(R10)S(O)2-*、-S(O)2N(R10)-*、-N(R10)S(O)-*、-S(O)N(R10)-*、-N(R10)S(O)2N(R10) - (O-H) -and-N (R)10)S(O)N(R10) -, wherein X represents X1Bound to R3Where;

X2independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; c1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R3selected from optionally substituted C3-12Carbocyclic and optionally substituted 3 to 12 membered heterocyclic ring, wherein R3The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R3Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence is selected from: hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

R12independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12Is optionally substituted or two substituents on a single carbon atom combine to form a 3-to 7-membered carbocyclic ring.

In certain embodiments, for compounds or salts of formula (IA), X2Independently at each occurrence is selected from-O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-。

In certain embodiments, for compounds of formula (IA):

represents an optional double bond;

L1’independently selected from-X1-、-X2-C1-6alkyl-X2-、-X2-C2-6alkenyl-X2-and-X2-C2-6alkynyl-X2Each at each occurrence being represented by one or more R10Optionally substituted;

L2independently selected from-X2-、-X2-C1-6alkyl-X2-、-X2-C2-6alkenyl-X2-and-X2-C2-6alkynyl-X2-, each of which is represented at each occurrence by one or more R10Optionally substituted;

X1independently at each occurrence selected from-S-, -N (R)10)-*、-C(O)O-*、-OC(O)-*、-OC(O)O-*、-C(O)N(R10)C(O)-*、-C(O)N(R10)C(O)N(R10)-*、-N(R10)C(O)-*、-CR10 2N(R10)C(O)-*、-N(R10)C(O)N(R10)-*、-N(R10)C(O)O-*、-OC(O)N(R10)-*、-C(NR10)-*、-N(R10)C(NR10)-*、-C(NR10)N(R10)-*、-N(R10)C(NR10)N(R10)-*、-S(O)2-*、-OS(O)-*、-S(O)O-*、-S(O)-*、-OS(O)2-*、-S(O)2O*、-N(R10)S(O)2-*、-S(O)2N(R10)-*、-N(R10)S(O)-*、-S(O)N(R10)-*、-N(R10)S(O)2N(R10) - (O-H) -and-N (R)10)S(O)N(R10) -, wherein X represents X1Bound to R3Where;

X2independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)-、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)-、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; and C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R3selected from optionally substituted C3-12A carbocycle and an optionally substituted 3-to 12-membered heterocycle, wherein the substituents are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R3Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence is selected from: hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl; and

wherein benzazepineAny substitutable carbon on the nucleus is optionally substituted by a substituent selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-P(O)(OR10)2、-OP(O)(OR10)2、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl groups, or two substituents on a single carbon atom, combine to form a 3-to 7-membered carbocyclic ring. As used herein, "benzazepineThe nucleus "is a benzazepineAnd 4, 5-dihydrobenzazepineA nuclear ring system.

In some embodiments, for compounds or salts of formula (IA), L2Can be in benzazepineThe core is linked at C2, C3, C4 or C5, wherein benzazepineThe numbering of (a) is as follows:in certain embodiments, for compounds or salts of formula (IA), L2With benzazepine at C4The cores are connected. In certain embodiments, for compounds or salts of formula (IA),represents a double bondAnd L is2With benzazepine at C4The cores are connected.

In some embodiments, for compounds or salts of formula (IA), L1May be attached at C6, C7, C8 or C9. In certain embodiments, for compounds or salts of formula (IA), L1With benzazepine at C8The cores are connected. In certain embodiments, for compounds or salts of formula (IA),represents a double bond, L2With benzazepine at C4Nuclear ligation and L1With benzazepine at C8The cores are connected.

In some embodiments, for compounds or salts of formula (IA), benzazepineThe substitutable carbon on the core is selected from C2, C3, C4, C5, C6, C7, C8, and C9. Benzazepine of a compound or salt of formula (IA)The core may be optionally substituted with a substituent selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-P(O)(OR10)2、-OP(O)(OR10)2、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl groups, or two substituents on a single carbon atom, combine to form a 3-to 7-membered carbocyclic ring. In some embodiments, for compounds or salts of formula (IA), in benzazepinesThe moiety of any one of C2, C3, C4, C5, C6, C7, C8 and C9 of the core is independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl.

In one embodiment, the compound of formula (IA) is represented by formula (IB):

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together areTo form optionally substituted saturated C3-7A carbocyclic ring.

In certain embodiments, the compound of formula (IA) is represented by formula (IC) or a pharmaceutically acceptable salt thereof:

in some embodiments, for compounds or salts of formula (IA), (IB), or (IC), L1Is selected from-N (R)10)C(O)-*、-S(O)2N(R10)-*、CR10 2N(R10) C (O) -, and-X2-C1-6alkylene-X2-C1-6Alkylene radical, each of which is C1-6Alkylene groups by one or more R12Optionally substituted. In some embodiments, L is1Is selected from-N (R)10) C (O) -. In some embodiments, -N (R)10) R in C (O) -)10Selected from hydrogen and C1-6An alkyl group. In some embodiments, for compounds or salts of formula (IA), (IB), or (IC), L1Is-nhc (o) -.

In some embodiments, for compounds or salts of formula (IA), (IB), or (IC), L1Selected from-S (O)2N(R10) - *. In some embodiments, -S (O)2N(R10) R in10Selected from hydrogen and C1-6An alkyl group. In some embodiments, L is1Selected from-S (O)2NH-*。

In some embodiments, for compounds or salts of formula (IA), (IB), or (IC), L1Is selected from-CR10 2N(R10) C (O) -. In certain embodiments, L1Is selected from-CH2N (H) C (O) and-CH (CH)3)N(H)C(O)-*。

In some embodiments, for compounds or salts of formula (IA), (IB), or (IC), R3Selected from optionally substituted C3-12Carbocyclic and optionally substituted 3 to 12 membered heterocyclic ring, wherein R3The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R3Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

R3May be selected from optionally substituted C3-12Carbocyclic and optionally substituted 3 to 12 membered heterocyclic ring, wherein R3The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is independentlyOptionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

In certain embodiments, R3Selected from optionally substituted C3-12Carbocyclic and optionally substituted 3 to 12 membered heterocyclic ring, wherein R3The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocyclic ring anda3 to 12 membered heterocyclic ring.

In some embodiments, for compounds or salts of formula (IA), (IB), or (IC), R3Selected from optionally substituted aryl and optionally substituted heteroaryl, e.g. R3Is an optionally substituted heteroaryl group. In some embodiments, R3Is optionally substituted heteroaryl substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. R3Can be selected from optionally substituted 5-or 6-membered heteroaryl. For example, R3Can be selected from: any of which is optionally substituted. In some embodiments, R3Selected from optionally substituted 6-membered heteroaryl, such as R3Is optionally substituted pyridine.

In some embodiments, for compounds or salts of formula (IA), (IB), or (IC), R3Is optionally substituted aryl, e.g. R3Is aryl optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. R3May be selected from optionally substituted phenyl and optionally substituted naphthyl. In certain embodiments, R3Is optionally substituted phenyl.

In some embodiments, for compounds or salts of formula (IA), (IB), or (IC), R3Selected from pyridine, phenyl, tetrahydronaphthalene, tetrahydroquinoline, tetrahydroisoquinoline, indane, cyclopropylbenzene, cyclopentylpyridine and dihydrobenzoxaboroleRings, any of which is optionally substituted. R3Can be selected from: any of which is optionally substituted. R3Can be selected from:

in some embodiments, for compounds of formula (IA), (IB), or (IC), or a pharmaceutically acceptable salt thereof:

L1is selected from-N (R)10)C(O)-*、-S(O)2N(R10)-*、-CR10 2N(R10) C (O) -, and-X2-C1-6alkylene-X2-C1-6Alkylene-;

L2is-C (O) -;

X2independently at each occurrence is selected from-O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)-、-N(R10)C(O)-、-N(R10)C(O)N(R10) -and-N (R)10)C(O)O-；

R1And R2Independently selected from hydrogen; and C1-10An alkyl group optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-NO2、＝O、＝S、＝N(R10) and-CN;

R3selected from optionally substituted phenyl, heteroaryl and a 9 or 10 membered bicyclic carbocyclic ring, wherein the substituents are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10An alkyl group, optionally substituted at each occurrence with one or more substituents selected from the group consisting of: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10An alkyl group, optionally substituted at each occurrence with one or more substituents selected from the group consisting of: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle;

R10independently at each occurrence is selected from: hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl; and

wherein benzazepineAny substitutable carbon on the coreOne or more R12Is optionally substituted, wherein R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-NO2、＝O、＝S、＝N(R10) and-CN; and C1-10An alkyl group optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycles and 3-to 10-membered heterocycles.

In certain embodiments, for compounds or salts of formula (IA), (IB), or (IC), the compound may further comprise a linker (L)3). The linker may be covalently attached, as valency permits, to any position on the compound or salt of formula (IA), (IB) or (IC). For example, a linker may be attached to R1、R2、R4、R3、X1Or X2And (4) combining. In certain embodiments, the linker is bound to a nitrogen or oxygen atom of the compound or salt of formula (IA), (IB), or (IC). The linker can comprise a reactive moiety, such as an electrophile, that can react with a moiety of the antibody (e.g., a lysine, serine, threonine, cysteine, tyrosine, aspartic acid, glutamine, unnatural amino acid residue, or glutamic acid residue of the antibody) to form a covalent bond. In some embodiments, the compound or salt of formula (IA), (IB), or (IC) may be covalently bound to the antibody via a linker.

In some aspects, the present disclosure provides compounds represented by the structure of formula (IIA):

or a pharmaceutically acceptable salt thereof, wherein:

represents an optional double bond;

L10is-X10-；

L2Is selected from-X2-、-X2-C1-6alkylene-X2-、-X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on alkylene, alkenylene or alkynylene12Optionally substituted;

X10selected from the group consisting of-C (O) -and-C (O) N (R)10) -, wherein X represents X10Bound to R5Where;

X2independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; and C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R5selected from unsaturated C4-8A carbocyclic ring; a bicyclic carbocycle; and fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycles, wherein R5Is optionally substituted and wherein the substituents at each occurrence are independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R5Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OH, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl, -C1-10Haloalkyl, -O-C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

R12independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6An alkynyl group; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12Optionally substituted by a substituent of (A), or two on a single carbon atomThe substituents combine to form a 3-to 7-membered carbocyclic ring.

In certain embodiments, for compounds of formula (IIA):

represents an optional double bond;

L10independently selected from-X10-；

L2Independently selected from-X2-、-X2-C1-6alkyl-X2-、-X2-C2-6alkenyl-X2-and-X2-C2-6alkynyl-X2-, each of which is represented at each occurrence by one or more R10Optionally substituted;

X10independently at each occurrence selected from-C (O) -and-C (O) N (R)10) -, wherein X represents X10Bound to R5Where;

X2independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; and C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R5selected from optionally substituted saturated and unsaturated C3-8A carbocycle, an optionally substituted saturated and unsaturated 3-to 8-membered heterocycle, an optionally substituted bicyclic carbocycle, and an optionally substituted bicyclic heterocycle, wherein the substituents are independently at each occurrence selected from the group consisting of: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R5Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocyclic, 3-to 12-membered heterocyclic ringAnd a haloalkyl group; and

wherein benzazepineAny substitutable carbon on the nucleus is optionally substituted with a substituent selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-P(O)(OR10)2、-OP(O)(OR10)2、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl groups, or two substituents on a single carbon atom, combine to form a 3-to 7-membered carbocyclic ring.

In some embodiments, for compounds or salts of formula (IIA), L2Can be in benzazepineThe core is linked at C2, C3, C4 or C5, wherein benzazepineThe numbering of (a) is as follows:in certain embodiments, L2With benzazepine at C4The cores are connected. In some embodiments of the present invention, the substrate is,represents a double bond and L2With benzazepine at C4The cores are connected.

In some embodiments, for compounds or salts of formula (IIA),L10may be attached at C6, C7, C8 or C9. In certain embodiments, L10With benzazepine at C8The cores are connected. In some embodiments of the present invention, the substrate is,represents a double bond, L2With benzazepine at C4Nuclear ligation and L10With benzazepine at C8The cores are connected.

In some embodiments, for compounds or salts of formula (IIA), benzazepineThe carbon substitutable on the core is selected from the group consisting of C2, C3, C4, C5, C6, C7, C8, and C9. Benzazepine of a compound or salt of formula (IIA)The nucleus may be optionally substituted with a substituent selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-P(O)(OR10)2、-OP(O)(OR10)2、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl groups, or two substituents on a single carbon atom, combine to form a 3-to 7-membered carbocyclic ring. In some embodiments, for compounds or salts of formula (IIA), benzazepineOf a coreMoieties at any of C2, C3, C4, C5, C6, C7, C8 and C9 are independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl. In one embodiment, the compound of formula (IIA) is represented by formula (IIB):

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

In one embodiment, the compound of formula (IIA) is represented by formula (IIC):

in certain embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), L10is-C (O) -. In certain embodiments, L10Selected from the group consisting of-C (O) N (R)10) - *. In certain embodiments, -C (O) N (R)10) R in10Selected from hydrogen and C1-6An alkyl group. In certain embodiments, L10is-C (O) NH-.

In certain embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), R5Is an optionally substituted 8-to 12-membered bicyclic carbocyclic ring. In some embodiments, R5Is an optionally substituted bicyclic carbocycle, such as an optionally substituted 8-to 12-membered bicyclic carbocycle such as indane, naphthalene, dihydronaphthalene, tetrahydronaphthalene. In some embodiments, R5Is an optionally substituted 8-to 12-membered bicyclic carbocyclic ring, independently selected from one or more of the following: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. In some embodiments, R5Is an optionally substituted 8-to 12-membered bicyclic carbocyclic ring, independently selected from one or more of the following: -OR10、-N(R10)2And ═ O. In some embodiments, R5Is optionally substituted indane or optionally substituted tetralin. In some embodiments, R5Selected from:each of which is optionally substituted. In some embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), R5Selected from:

in some embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), R5Is optionally substituted unsaturated C4-8A carbocyclic ring. In some embodiments，R5Is optionally substituted unsaturated C4-6Carbocyclic rings, such as cyclopentene, cyclopentadiene, cyclohexene, cyclobutene. In some embodiments, R5Is optionally substituted unsaturated C with one or more substituents independently selected from4-6Carbocyclic ring: optionally substituted C3-12Carbocycle and optionally substituted 3-to 12-membered heterocycle. In some embodiments, R5Is optionally substituted unsaturated C with one or more substituents independently selected from4-6Carbocyclic ring: optionally substituted phenyl, optionally substituted 3 to 12 heterocycle, optionally substituted C1-10Alkyl, optionally substituted C2-10Alkenyl and halogen.

In certain embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), R5Are optionally substituted fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycles. In some embodiments, R5Is an optionally substituted fused 5-5, fused 5-6, and fused 6-6 bicyclic heterocycle, independently selected from one or more of the following substituents: -C (O) OR10、-N(R10)2、-OR10And optionally substituted C1-10An alkyl group. In some embodiments, R5Is represented by-C (O) OR10Substituted optionally substituted fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycles. In some embodiments, R5Is an optionally substituted fused 6-6 bicyclic heterocycle. The fused 6-6 bicyclic heterocycle may be an optionally substituted pyridine-piperidine. In some embodiments, L is10Bonded to the carbon atom of the pyridine in the fused pyridine-piperidine. In some embodiments, R5Selected from the group consisting of tetrahydroquinoline, tetrahydroisoquinoline, tetrahydronaphthyridine, cyclopentylpyridine, and dihydrobenzoxaborole, any of which is optionally substituted. In some embodiments, R5Is an optionally substituted tetrahydronaphthyridine. In some embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), R5Selected from:

in some embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), R5Selected from the group consisting of tetrahydronaphthalene, tetrahydroquinoline, tetrahydroisoquinoline, indane, cyclopropylbenzene, cyclopentylpyridine and dihydrobenzoxaborole, any of which is optionally substituted. In some embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), R5Selected from: any of which is optionally substituted. In some embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), R5Selected from:

in some embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), when R is5When is substituted, R5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

In some embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), when R is5When is substituted, R5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycles and 3-to 12-membered heterocycles.

In some embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), when R is5When is substituted, R5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-NO2、＝O、＝S、＝N(R10) and-CN. In certain embodiments, R5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2O and-CN; and C1-10An alkyl group optionally substituted with one or more substituents independently selected from: halogen,. alpha.. In certain embodiments, R5Is unsubstituted.

In some embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), R5Selected from saturated and unsaturated C3-8A carbocycle, a bicyclic carbocycle and a bicyclic heterocycle, any of which is optionally substituted and wherein the substituents at each occurrence are independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R5Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

In some embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), R20、R21、R22And R23Independently selected from hydrogen, halogen, -OH, -OR10、-NO2-CN and C1-10An alkyl group. In some embodiments, R20、R21、R22And R23Each is hydrogen. In some embodiments, R21Is halogen, such as fluorine. In one exemplary embodiment, R21Is hydrogen. In other embodiments, R21is-OR10. For example, R21May be-OCH3。

In some embodiments, for compounds of formula (IIA), (IIB), or (IIC):

L10selected from the group consisting of-C (O) N (R)10) -, and-C (O) -;

L2is-C (O) -;

R1and R2Independently selected from hydrogen; and C optionally substituted at each occurrence with one or more substituents selected from the group consisting of1-10Alkyl groups: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10(ii) a And C1-10An alkyl group, optionally substituted at each occurrence with one or more substituents selected from the group consisting of: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle;

R5selected from optionally substituted unsaturated C4-8Carbocycle, optionally substituted bicyclic carbocycle and optionally substituted fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycle, wherein R is5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R5Each of which isC3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C optionally substituted with one or more substituents independently selected from1-10Alkyl groups: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12The substituent(s) of (a) is optionally substituted.

In some embodiments, for compounds of formula (IIA), (IIB), or (IIC):

L10selected from the group consisting of-C (O) N (R)10) -, and-C (O) -;

L2is-C (O) -;

R1and R2Each is hydrogen;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；

R5Selected from optionally substituted fused 5-5, fused5-6 and a fused 6-6 bicyclic heterocycle, wherein the substituents are independently at each occurrence selected from the group consisting of: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R5Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C optionally substituted with one or more substituents independently selected from1-10Alkyl groups: halogen, -OH, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C3-12Carbocycle and 3 to 12 membered heterocycle; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12The substituent(s) of (a) is optionally substituted.

In some embodiments, for compounds of formula (IIB) or (IIC):

L10selected from the group consisting of-C (O) N (R)10) -, such as-C (O) NH-;

L2is-C (O) -;

R1and R2Each is hydrogen;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10Such as R4is-N (R)10)2；

R5Selected from optionally substituted fused 5-5, fused 5-6 and fused 6-6 bicyclic heterocycles, e.g. R5Selected from tetrahydroquinoline, tetrahydroisoquinoline, indane, wherein R5The substituents on (a) are independently at each occurrence selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; and C optionally substituted at each occurrence with one or more substituents selected from1-10Alkyl groups: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle;

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C optionally substituted with one or more substituents independently selected from1-10Alkyl groups: halogen, -OH, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C3-12Carbocycle and 3 to 12 membered heterocycle;

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, e.g. R20、R21、R22And R23Each is hydrogen; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, e.g. R24And R25Each is hydrogen.

In certain embodiments, for compounds or salts of formula (IIA), (IIB), or (IIC), the compound may further comprise a linker (L)3). The linker may be covalently attached, where valency permits, to any position on the compound or salt of formula (IIA), (IIB) or (IIC). For example, a linker may be attached to R1、R2、R4、R5、X10Or X2And (4) combining. In certain embodiments, the linker may be bound to a nitrogen atom or an oxygen atom of a compound or salt of formula (IIA), (IIB), or (IIC). The linker may comprise a moiety that can bind to an antibody (e.g.,lysine, serine, threonine, cysteine, tyrosine, aspartic acid, glutamine, unnatural amino acid residue, or glutamic acid residue of an antibody) to form a reactive moiety of a covalent bond. In some embodiments, the compound or salt of formula (IIA), (IIB), or (IIC) may be covalently bound to the antibody construct through a linker.

In some aspects, the present disclosure provides compounds represented by the structure of formula (IIIA):

or a pharmaceutically acceptable salt thereof, wherein:

represents an optional double bond;

L11is-X11-；

L2Is selected from-X21-、-X21-C1-6alkylene-X21-、-X21-C2-6alkenylene-X21-and-X2-C2-6alkynylene-X2-, each of which is substituted by one or more R on alkylene, alkenylene or alkynylene12Optionally substituted;

X11selected from the group consisting of-C (O) -and-C (O) N (R)10) -, wherein X represents X11Bound to R6Where;

X21independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)-、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)-、-OS(O)2-、-S(O)2O-、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; c1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R6selected from phenyl and 5 or 6 membered heteroaryl, any of which is selected from R7And R is substituted with one or more substituents of (a) and6is independently selected from R12Further optionally substituted with one or more additional substituents of (a);

R7selected from-C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10)、-C(O)CH3、-C1-3alkylene-NHC (O) OR11、-C1-3alkylene-NHC (O) R10、-C1-3alkylene-NHC (O) NHR10、-C1-3alkylene-NHC (O) -C1-3alkylene-R10And is independently selected from R12A3 to 12 membered heterocyclic ring optionally substituted with one or more substituents of (a);

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OH, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、-C1-10Alkyl, -C1-10Haloalkyl, -O-C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle and 3 to 12 membered heterocycle;

R11is selected from C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is independently selected from R12Optionally substituted with one or more substituents of (a);

R12independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group; and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12Is optionally substituted, or two substituents on a single carbon atom combine to form a 3-to 7-membered carbocyclic ring.

In certain embodiments, for compounds or salts of formula (IIIA):

represents an optional double bond;

L11independently selected from-X11-；

L2Independently selected from-X2-、-X2-C1-6alkylene-X2-、-X2-C2-6alkenylene-X2-and-X2-C2-6alkynylene-X2-, each of which is represented at each occurrence by one or more R10Optionally substituted;

X11independently at each occurrence selected from-C (O) -and-C (O) N (R)10) -, wherein X represents X11Bound to R6Where;

X2independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-(O)N(R10)C(O)N(R10)、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)-、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from hydrogen; c1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、

-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R6selected from phenyl and 5 or 6 membered heteroaryl, any of which is selected from R7Substituted with one or more substituents of (a);

R7selected from-C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10)、-C(O)CH3、-C1-3alkylene-NHC (O) OR10、-C1-3alkylene-NHC (O) R10、-C1-3alkylene-NHC (O) NHR10and-C1-3alkylene-NHC (O) -C1-3Alkylene- (R)10)2(ii) a And an optionally substituted 3-to 12-membered heterocyclic ring;

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl; and

wherein benzazepineAny substitutable carbon on the nucleus is optionally substituted with a substituent selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-P(O)(OR10)2、-OP(O)(OR10)2、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl groups, or two substituents on a single carbon atom, combine to form a 3-to 7-membered carbocyclic ring.

In some embodiments, for compounds or salts of formula (IIIA), L2Can be in benzazepineThe core is linked at C2, C3, C4 or C5, wherein benzazepineThe numbering of (a) is as follows:in certain embodiments, for a compound or salt of formula (IIIA), L2With benzazepine at C4The cores are connected. In certain embodiments, for compounds or salts of formula (IIIA),represents a double bond and L2With benzazepine at C4The cores are connected.

In some embodiments, for compounds or salts of formula (IIIA), L11May be attached at C6, C7, C8 or C9. In certain embodiments, for a compound or salt of formula (IIIA), L11With benzazepine at C8The cores are connected. In certain embodiments, for compounds or salts of formula (IIIA),represents a double bond, L2With benzazepine at C4Core is connected, and L11With benzazepine at C8The cores are connected.

In some embodiments, for compounds or salts of formula (IIIA), the benzazepineThe carbon substitutable on the core is selected from the group consisting of C2, C3, C4, C5, C6, C7, C8, and C9. Benzazepine of a compound or salt of formula (IIIA)The nucleus may be optionally substituted with a substituent selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-P(O)(OR10)2、-OP(O)(OR10)2、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl groups, or two substituents on a single carbon atom, combine to form a 3-to 7-membered carbocyclic ring. In some embodiments, for compounds or salts of formula (IIIA), in the benzazepineThe moiety at any one of C2, C3, C4, C5, C6, C7, C8, and C9 of the core is independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl.

In some embodiments, the compound of formula (IIIA) is represented by formula (IIIB):

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

In one embodiment, the compound of formula (IIIA) is represented by formula (IIIC):

in some embodiments, for a compound or salt of formula (IIIA), (IIIB), or (IIIC), L11Selected from the group consisting of-C (O) -and-C (O) N (R)10) -, wherein represents L11Bound to R6Where (a) is located. In certain embodiments, L11is-C (O) -. In certain embodiments, L11Selected from the group consisting of-C (O) N (R)10) - *. In certain embodiments, R10Or L11Selected from hydrogen and C1-6An alkyl group.

In certain embodiments, for a compound or salt of formula (IIIA), (IIIB), or (IIIC), R6Is independently selected from R12Is further optionally substituted. In some embodiments, for a compound or salt of formula (IIIA), (IIIB), or (IIIC), R7Selected from the group consisting of-C (O) N (R)10)N(R10)2、-C(O)N(R10)-C1-3alkylene-N (R)10)2、-C(O)CH3、-C1-3alkylene-N (R)10)C(O)OR11、-C1-3alkylene-N (R)10)C(O)R10、-C1-3alkylene-N (R)10)C(O)N(R10)2、-C1-3alkylene-N (R)10)C(O)-C1-3alkylene-R10And is independently selected from R12A3 to 12 membered heterocyclic ring optionally substituted with one or more substituents of (a). R11Can be selected from C3-12A carbocycle and a 3-to 12-membered heterocycle, each independently selected from R12Optionally substituted with one or more substituents of (a). In certain embodiments, for a compound or salt of formula (IIIA), (IIIB), or (IIIC), R7Selected from-C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10)、-C(O)CH3、-C1-3alkylene-NHC (O) OR11、-C1-3alkylene-NHC (O) R10、-C1-3alkylene-NHC (O) NHR10、-C1-3alkylene-NHC (O) -C1-3alkylene-R10And is independently selected from R12A3 to 12 membered heterocyclic ring optionally substituted with one or more substituents of (a). In certain embodiments, R7Selected from-C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10)、-C(O)CH3、-C1-3alkylene-NHC (O) OR11、-C1-3alkylene-NHC (O) NHR10、-C1-3alkylene-NHC (O) -C1-3alkylene-R10And is independently selected from R12A3 to 12 membered heterocyclic ring optionally substituted with one or more substituents of (a). In certain embodiments, R7Is independently selected from R12Optionally substituted-3 to 12 membered heterocyclic ring.

In some embodiments, for a compound or salt of formula (IIIA), (IIIB), or (IIIC), R6Selected from optionally substituted phenyl and optionally substituted 5-6 membered heteroaryl, wherein R6Is independently selected from R7Is substituted with one or more substituents of (a). In some embodiments, R6Is selected from optionally substituted phenyl, wherein phenyl is independently selected from R7Is substituted with one or more substituents of (a). In some embodiments, R6Selected from optionally substituted phenyl, wherein phenyl is substituted with substituents independently selected from: -C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10) and-C (O) CH3(ii) a And a3 to 12 membered heterocyclic ring optionally substituted with one or more substituents selected from: -OH、-N(R10)2、–NHC(O)(R10)、–NHC(O)O(R10)、–NHC(O)N(R10)2、-C(O)R10、-C(O)2R10and-C1-3Alkylene- (R)10) And optionally further substituted with one or more additional substituents. In some embodiments, for a compound or salt of formula (IIIA), (IIIB), or (IIIC), R6Selected from:

in some embodiments, for a compound or salt of formula (IIIA), (IIIB), or (IIIC), R6Selected from optionally substituted 5-6 membered heteroaryl, wherein heteroaryl is independently selected from R7Is substituted with one or more substituents of (a). R6Can be selected from the group consisting of R independently75-and 6-membered heteroaryl substituted with one or more substituents of (a), and R6May be selected from R12Further optionally substituted with one or more additional substituents of (a). In some embodiments, R6Selected from optionally substituted 5-6 membered heteroaryl, wherein heteroaryl is substituted with one or more substituents independently selected from: -C (O) CH3、-C1-3alkylene-NHC (O) OR10、-C1-3alkylene-NHC (O) R10、-C1-3alkylene-NHC (O) NHR10and-C1-3alkylene-NHC (O) -C1-3Alkylene- (R)10) (ii) a And a3 to 12 membered heterocyclic ring optionally substituted with one or more substituents selected from: -OH, -N (R)10)2、–NHC(O)(R10)、–NHC(O)O(R10)、–NHC(O)N(R10)2、-C(O)R10、-C(O)N(R10)2、-C(O)2R10and-C1-3Alkylene- (R)10) And R6Is independently selected from R12Optionally further substituted with one or more additional substituents of (a). In some embodiments, R6Selected from substituted pyridines, pyrazines, pyrimidines, pyridazines, furans, pyrans, oxazoles, thiazoles, imidazolesOxazole, pyrazole, oxadiazole, oxathiazole and triazole, and R6Is independently selected from R12Optionally further substituted with one or more additional substituents of (a). R6Optionally substituted pyridine, and R6Is independently selected from R12Optionally further substituted with one or more additional substituents of (a). In certain embodiments, R6This can be shown as follows:

in some embodiments, R6Is a substituted pyridine, and wherein R7is-C1-3alkylene-NHC (O) -C1-3alkylene-R10。R7Can be-C1alkylene-NHC (O) -C1alkylene-R10。R7Can be-C1alkylene-NHC (O) -C1alkylene-NH2. In some embodiments, for a compound or salt of formula (IIIA), (IIIB), or (IIIC), R6Selected from: in one exemplary embodiment, R6Is that

In certain embodiments, for compounds or salts of formula (IIIA), (IIIB), or (IIIC), the compound may further comprise a linker (L)3). When valency permits, a linker can be covalently attached to any position on the compound or salt of formula (IIIA), (IIIB) or (IIIC). For example, a linker may be attached to R1、R2、R4、R6、X11Or X2And (4) combining. In certain embodiments, the linker is chemically modified with formula (IIIA), (IIIB) or (IIIC)The nitrogen or oxygen atoms of the compound or salt are bonded. The linker may comprise a reactive moiety, such as an electrophile, that can react with a portion of the antibody construct (lysine, serine, threonine, cysteine, tyrosine, aspartic acid, glutamine, unnatural amino acid residue, or glutamic acid residue of the antibody) to form a covalent bond. In some embodiments, the compound or salt of formula (IIIA), (IIIB), or (IIIC) may be covalently bound to the antibody construct through a linker moiety.

In certain embodiments, for compounds or salts of formula (IIIA), (IIIB), or (IIIC):

L11is-C (O) N (R)10) -, such as L11is-C (O) NH-;

L2selected from the group consisting of-C (O) -and-C (O) NR10-；

R1And R2Independently selected from hydrogen; and C1-10An alkyl group, optionally substituted at each occurrence with one or more substituents selected from the group consisting of: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10(ii) a And C1-10An alkyl group, optionally substituted at each occurrence with one or more substituents selected from the group consisting of: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-C(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle;

R6selected from phenyl and 5 or 6 membered heteroaryl, any of which is selected from R7Substituted with one or more substituents of (a);

R7selected from-C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10)、-C(O)CH3、-C1-3alkylene-NHC (O) OR11、-C1-3alkylene-NHC (O) R10、-C1-3alkylene-NHC (O) NHR10and-C1-3alkylene-NHC (O) -C1-3Alkylene- (R)10)2(ii) a And is independently selected from R12A3 to 12 membered heterocyclic ring optionally substituted with one or more substituents of (a);

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

R11is selected from C3-12A carbocycle and a 3-to 12-membered heterocycle, each independently selected from R12Optionally substituted with one or more substituents of (a); and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12The substituent(s) of (a) is optionally substituted.

In certain embodiments, for compounds or salts of formula (IIIA), (IIIB), or (IIIC):

L11is-C (O) N (R)10)-*；

L2is-C (O) -;

R1and R2Each is hydrogen;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；

R6Selected from phenyl and 5 or 6 membered heteroaryl, any of which is selected from R7Substituted with one or more substituents of (a);

R7selected from-C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10)、-C(O)CH3、-C1-3alkylene-NHC (O) OR11、-C1-3alkylene-NHC (O) R10、-C1-3alkylene-NHC (O) NHR10and-C1-3alkylene-NHC (O) -C1-3Alkylene- (R)10)2；

R10Independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

R11is selected from C3-12A carbocycle and a 3-to 12-membered heterocycle, each independently selected from R12Optionally substituted with one or more substituents of (a); and

wherein benzazepineAny substitutable carbon on the core is independently selected from R12The substituent(s) of (a) is optionally substituted.

In certain embodiments, for compounds or salts of formula (IIIA), (IIIB), or (IIIC):

L11is-C (O) N (R)10) -, such as L11is-C (O) NH-;

L2is-C (O) -;

R1and R2Each is hydrogen;

R4selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；

R6Selected from phenyl and 5-or 6-membered heteroaryl, such as pyridine, any of which is selected from R7Substituted with one or more substituents of (a);

R7selected from-C (O) NHNH2、-C(O)NH-C1-3alkylene-NH (R)10)、-C(O)CH3、-C1-3alkylene-NHC (O) OR11、-C1-3alkylene-NHC (O) NHR10and-C1-3alkylene-NHC (O) -C1-3Alkylene- (R)10)2(ii) a And is independently selected from R12A3 to 12 membered heterocyclic ring optionally substituted with one or more substituents of (a);

R10independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

R11is selected from C3-12A carbocycle and a 3-to 12-membered heterocycle, each independently selected from R12Optionally substituted with one or more substituents of (a); and

wherein benzazepineAny substitutable carbon on the coreIndependently selected from R12The substituent(s) of (a) is optionally substituted.

In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R20、R21、R22And R23Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10An alkyl group. In some embodiments, R20、R21、R22And R23Each is hydrogen.

In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R24And R25Independently selected from hydrogen, halogen, -OH, -NO2-CN and C1-10Alkyl, or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R24And R25Each is hydrogen. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R24And R25Together form an optionally substituted saturated C3-5Carbocyclic ring wherein the substituents may be selected from halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN; and C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each independently optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycles and 3-to 12-membered heterocycles.

In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R1And R2Independently selected from hydrogen; c1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R1Is hydrogen. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R2Is hydrogen. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R1Is hydrogen and R2Is hydrogen.

In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), L2Independently selected from-X2-、-X2-C1-6alkyl-X2-、-X2-C2-6alkenyl-X2-and-X2-C2-6alkynyl-X2-, each of which is represented at each occurrence by one or more R10Optionally substituted. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), L2Selected from the group consisting of-C (O) -and-C (O) NR10-. In some embodiments, for any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC)Compound, L2Selected from the group consisting of-C (O) -. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), L2Selected from-C (O) NR10-. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB) and (IIIC), -C (O) NR10R in (A-C)10Selected from hydrogen and C1-6An alkyl group. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), L2is-C (O) NH-.

In some embodiments, for compounds of any of formulas (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), X2Independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10) -. In some embodiments, for compounds of any one of formulas (IA), (IB), (IC), X2Independently at each occurrence is selected from-O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)、-OS(O)2-、-S(O)2O、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10) -. In certain embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), X2Selected from the group consisting of-C (O) -and-C (O) NR10-. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), X2Selected from the group consisting of-C (O) -. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), X2Selected from-C (O) NR10-. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB) and (IIIC), -C (O) NR10R in (A-C)10Selected from hydrogen and C1-6An alkyl group. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), X2is-C (O) NH-.

In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted with one or more substituents independently selected from: halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-C(O)N(R10)-、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R4Selected from: -OR10and-N (R)10)2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle, a 3-to 12-membered heterocycle, each of which is optionally substituted independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R4is-N (R)10)2。

In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R10Independently at each occurrence, is selected from hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OH, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl, -C1-10Haloalkyl, -O-C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3-to 12-membered heterocycle, and haloalkyl.

In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R4is-N (R)10)2And each R10Independently selected from optionally substituted C1-6An alkyl group. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R4is-N (R)10)2And each R10Independently selected from methyl, ethyl, propyl and butyl, any of which is optionally substituted. In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R4Is that

In some embodiments, for compounds or salts of formula (IA), (IIA), (IIIA), benzazepineAny substitutable carbon on the core is independently selected from R12Is optionally substituted, or two substituents on a single carbon atom combine to form a 3-to 7-membered carbocyclic ring. In some embodiments, R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6Alkynyl.

In some embodiments, for compounds or salts of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), or (IIIC), R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10A carbocycle and a 3-to 10-membered heterocycle, each of which is optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6Alkynyl.

In some embodiments, for compounds or salts of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), or (IIIC), R12May be independently selected at each occurrence from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycles and 3-to 10-membered heterocycles.

In some embodiments, for compounds or salts of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), or (IIIC), R12May be independently selected at each occurrence from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; and C1-10An alkyl group optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN.

In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6Alkynyl.

In some embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), and (IIIC), R12Independently at each occurrence, is selected from halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-C(O)N(R10)2、-N(R10)C(O)R10、-C(O)OR10、-OC(O)R10、-S(O)R10、-S(O)2R10、-P(O)(OR10)2、-OP(O)(OR10)2、-NO2、＝O、＝S、＝N(R10) and-CN; c1-10An alkyl group, optionally substituted at each occurrence with one or more substituents selected from the group consisting of: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-10Carbocycle and 3 to 10 membered heterocycle; and C3-10Carbocyclic and 3 to 10 membered heterocyclic ring, wherein R12Each C in3-10The carbocycle and the 3-to 10-membered heterocycle are independently optionally substituted with one or more substituents selected from: halogen, -OR10、-SR10、-N(R10)2、-C(O)R10、-NO2、＝O、＝S、＝N(R10) -CN and C1-6An alkyl group.

Any combination of the above groups for the various variables is contemplated herein. Throughout the specification, groups and substituents thereof may be selected to provide stable moieties and compounds.

In certain embodiments, exemplary compounds may include, but are not limited to, compounds or salts of any one of compounds 1.1-1.67:

in certain embodiments, any one of compounds 1.1 to 1.67 is linked to a linker (L)3) And (4) covalently bonding. When valency permits, a linker can be covalently attached to any position on the compounds or salts of compounds 1.1 to 1.67. The linker may be with a benzazepineAmine binding on the core. The linker may be bound to a substitutable nitrogen or oxygen atom of any one of compounds 1.1 to 1.67. In some embodiments, R1、R2And R10Is at least one of L3And (4) replacing. In some embodiments, R is selected from1、R2、R3、R4、R5、R6、X1And X2At least one substituent on the group of (a) is-L3. The linker may comprise a reactive moiety, such as an electrophile, which may react with a moiety of the antibody construct (such as, for example, a lysine, serine, threonine, cysteine, tyrosine, aspartic acid, glutamine, unnatural amino acid residue, or glutamic acid residue of any antibody) to form a covalent bond. In some embodiments, a compound or salt of compounds 1.1 to 1.67 can be covalently bound to the antibody construct through a linker.

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In some aspects, the disclosure provides compositions comprising linker L3The compound of (1). In certain embodiments, the compound that binds to the linker is represented by the structure of formula (IVA):

wherein:

represents an optional double bond;

L12independently selected from-X3-、-X3-C1-6alkyl-X3-、-X3-C2-6alkenyl-X3-and-X3-C2-6alkynyl-X3-, each of which is represented at each occurrence by one or more R10Optionally substituted;

L22independently selected from-X4-、-X4-C1-6alkyl-X4-、-X4-C2-6alkenyl-X4-and-X4-C2-6alkynyl-X4-, each of which is represented at each occurrence by one or more R10Optionally substituted;

X3and X4Independently at each occurrence is selected from the group consisting of a bond, -O-, -S-, -N (R)10)-、-C(O)-、-C(O)O-、-OC(O)-、-OC(O)O-、-C(O)N(R10)-、-C(O)N(R10)C(O)-、-C(O)N(R10)C(O)N(R10)-、-N(R10)C(O)-、-N(R10)C(O)N(R10)-、-N(R10)C(O)O-、-OC(O)N(R10)-、-C(NR10)-、-N(R10)C(NR10)-、-C(NR10)N(R10)-、-N(R10)C(NR10)N(R10)-、-S(O)2-、-OS(O)-、-S(O)O-、-S(O)、-OS(O)2-、-S(O)2O-、-N(R10)S(O)2-、-S(O)2N(R10)-、-N(R10)S(O)-、-S(O)N(R10)-、-N(R10)S(O)2N(R10) -and-N (R)10)S(O)N(R10)-；

R1And R2Independently selected from L3And hydrogen; and C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN;

R4and R8Independently selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4And R8Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6An alkynyl group;

R10independently at each occurrence is selected from L3Hydrogen, -NH2、-C(O)OCH2C6H5(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -CN, -NO2、-NH2、＝O、＝S、-C(O)OCH2C6H5、-NHC(O)OCH2C6H5、C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12Carbocycle, 3 to 12 membered heterocycle and haloalkyl;

L3is a linker moiety wherein R1、R2And R10Is at least one of L3Or R1、R2、R4、R8、X3And X4At least one substituent on is-L3(ii) a And

wherein benzazepineAny substitutable carbon on the nucleus is optionally substituted with a substituent selected from: halogen, -OR10、-SR10、-C(O)N(R10)2-、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-P(O)(OR10)2、-OP(O)(OR10)2、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl groups, or two substituents on a single carbon atom, combine to form a 3-to 7-membered carbocyclic ring.

In some embodiments, for compounds or salts of formula (IVA), L22Can be in benzazepineThe core is linked at C2, C3, C4 or C5, wherein benzazepineThe numbering of (a) is as follows:in certain embodiments, for compounds or salts of formula (IVA), L22With benzazepine at C4The cores are connected. In certain embodiments, for compounds or salts of formula (IVA),represents a double bond and L22With benzazepine at C4The cores are connected.

In some embodiments, for compounds or salts of formula (IVA), L12May be attached at C6, C7, C8 or C9. In certain embodiments, for compounds or salts of formula (IVA), L12With benzazepine at C8The cores are connected. In certain embodiments, for compounds or salts of formula (IVA),represents a double bond, L22With benzazepine at C4Nuclear ligation and L12With benzazepine at C8The cores are connected.

In some embodiments, for compounds or salts of formula (IVA), benzazepinesThe substitutable carbon on the core is selected from C2, C3, C4, C5, C6, C7, C8, and C9. For compounds or salts of formula (IVA), benzazepineThe nucleus may be optionally substituted with a substituent selected from: halogen, -OR10、-SR10、-C(O)N(R10)2-、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-P(O)(OR10)2、-OP(O)(OR10)2、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl groups, or two substituents on a single carbon atom, combine to form a 3-to 7-membered carbocyclic ring. In some embodiments, for compounds or salts of formula (IVA), in the benzazepineThe moiety of any one of C2, C3, C4, C5, C6, C7, C8 and C9 of the core is independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl.

In one embodiment, the compound of formula (IVA) is represented by formula (IVB) or a pharmaceutically acceptable salt thereof:

wherein:

R20、R21、R22and R23Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; and

R24and R25Independently selected from hydrogen, halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10An alkynyl group; or R24And R25Together form an optionally substituted saturated C3-7A carbocyclic ring.

In certain embodiments, the compound of formula (IVA) is represented by formula (IVC) or a pharmaceutically acceptable salt thereof:

in certain embodiments, for compounds or salts of any one of formulas (IVA), (IVB), and (IVC), L12Is selected from-X3-、-X3-C1-6alkylene-X3-、-X3-C2-6alkenylene-X3-and-X3-C2-6alkynylene-X3-, each of which is substituted by one or more R on alkylene, alkenylene and alkynylene12Optionally substituted.

In certain embodiments, for compounds or salts of any one of formulas (IVA), (IVB), and (IVC), L22Is selected from-X4-、-X4-C1-6alkylene-X4-、-X4-C2-6alkenylene-X4-and-X4-C2-6alkynylene-X4-, wherein there is one or more R on alkylene, alkenylene and alkynylene12Optionally substituted.

In some embodiments, for compounds or salts of any one of formulas (IVA), (IVB), and (IVC), R1And R2Is independently selected from-L3Hydrogen; c1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: -L3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)2、-S(O)R10、-S(O)2R10、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10) and-CN.

In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), R1Is selected from-L3. In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), R2Is selected from-L3. In some embodiments, for compounds or salts of any one of formulas (IVA), (IVB), and (IVC), R1is-L3And R2Is hydrogen.

In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), L12Independently selected from-X3-、-X3-C1-6alkyl-X3-、-X3-C2-6alkenyl-X3-and-X3-C2-6alkynyl-X3-, each of which is represented at each occurrence by one or more R10Optionally substituted. In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), L12Selected from the group consisting of-C (O) -and-C (O) NR10-. In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), L12is-C (O) N (R)10) -. In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), -c (o) N (R)10) R in (A-C)10Selected from hydrogen, C1-6Alkyl and-L3. In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), L12is-C (O) NH-. In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), L12is-C (O) N (L)3)-。

In certain embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), R4And R8Independently selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12A carbocycle and a 3-to 12-membered heterocycle, each of which is optionally substituted independently with one or more substituents selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl.

In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), R8Is an optionally substituted 5-6 membered heteroaryl. In some embodiments, R8is-L of3Substituted, optionally substituted, 5-6 membered heteroaromaticsAnd (4) a base. R8Can be-L3Substituted optionally substituted pyridines.

In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), L22Independently selected from-X4-、-X4-C1-6alkyl-X4-、-X4-C2-6alkenyl-X4-and-X4-C2-6alkynyl-X4-, each of which is represented at each occurrence by one or more R10Optionally substituted. In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), L22Selected from the group consisting of-C (O) -and-C (O) NR10-。L22May be-C (O) -. In some embodiments, L is22is-C (O) NR10-, wherein-C (O) NR10R in (A-C)10Can be selected from hydrogen and C1-6Alkyl and-L3. In some embodiments, L is22is-C (O) NH-. In certain embodiments, L12is-C (O) N (L)3)-。

In some embodiments, for compounds of formula (IVA), (IVB), or (IVC), R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10；C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: -L3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycle and 3 to 12 membered heterocycle; and C3-12Carbocycle and 3-to 12-membered heterocycle, wherein R4Each C in3-12The carbocycle and the 3-to 12-membered heterocycle are independently optionally substituted with one or more substituents selected from: -L3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-6Alkyl radical, C2-6Alkenyl and C2-6Alkynyl. In some embodiments, R4Selected from: -OR10and-N (R)10)2(ii) a And C1-10Alkyl radical, C2-10Alkenyl radical, C2-10Alkynyl, C3-12A carbocycle, a 3-to 12-membered heterocycle, an aryl and a heteroaryl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: -L3Halogen, -OR10、-SR10、-N(R10)2、-S(O)R10、-S(O)2R10,-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl. In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), -N (R)10)2R in (1)10Is selected from-L3And hydrogen, and wherein-N (R)10)2At least one R of10is-L3。

In certain embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), R4Selected from: -OR10、-N(R10)2、-C(O)N(R10)2、-C(O)R10、-C(O)OR10、-S(O)R10and-S (O)2R10(ii) a And C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: l is3Halogen, -OR10、-SR10、-C(O)N(R10)2、-N(R10)C(O)R10、-N(R10)C(O)N(R10)2、-N(R10)2、-C(O)R10、-C(O)OR10、-OC(O)R10、-NO2、＝O、＝S、＝N(R10)、-CN、C3-12Carbocycles and 3-to 12-membered heterocycles.

In certain embodiments, for compounds or salts of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC), L3Is a non-cleavable linker. In some embodiments, for compounds or salts of formula (IVA), (IVB), or (IVC), L3Are cleavable linkers such as those cleavable by lysosomal enzymes.

In certain embodiments, the moieties described herein include symbols representing attachment pointsE.g., the point of attachment of a chemical moiety to the remainder of the compound, the point of attachment of a linker to a compound of the disclosure, or the point of attachment of a linker to an antibody construct as described herein.

Some exemplary linkers (L)3) Described in the following paragraphs, and additional linkers are described in the following section entitled "linkers". In some embodiments, for compounds or salts of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC), -L3Is represented by the formula:wherein the peptide is a group comprising one to ten amino acids.

In some embodiments, for compounds or salts of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC), -L3Is represented by the formula:wherein the peptide is a group comprising one to ten amino acids and RX is a reactive moiety, and a peptide consisting ofIs represented by the formula, wherein L4Denotes the C-terminal and L of the peptide5Selected from the group consisting of a bond, alkylene, and heteroalkylene, wherein L5Is independently selected from R32Optionally substituted, RX is a reactive moiety; and R32Independently at each occurrence, is selected from the group consisting of halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2、-NO2(ii) a And C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2and-NO2。

In certain embodiments, for compounds of any of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC), -L3Is represented by the formula:is represented by the formula, wherein L4Denotes the C-terminal and L of the peptide5Selected from the group consisting of a bond, alkylene, and heteroalkylene, wherein L5Is independently selected from R32Optionally substituted with one or more groups of (a); RX*Is a bond, a succinimide moiety or a hydrolysed succinimide moiety bound to a residue of an antibody construct, wherein on RXRepresents a point of attachment to a residue of an antibody construct; and R32Independently at each occurrence, is selected from the group consisting of halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2、-NO2(ii) a And C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2and-NO2. The reactive moiety may be selected from electrophiles, such as α, β -unsaturated carbonyl, such as maleimide, and leaving groups.

In some embodiments, for compounds or salts of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC), -L3Represented by the formula: wherein L is4Denotes the C-terminal and L of the peptide5Selected from the group consisting of a bond, alkylene, and heteroalkylene, wherein L5Is independently selected from R32Optionally substituted with one or more groups of (a); RX is a bond, a succinimide moiety or a hydrolysed succinimide moiety bound to a residue of an antibody construct, wherein the antibody is an antibody construct; and R32Independently at each occurrence, is selected from the group consisting of halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2、-NO2(ii) a And C1-10Alkyl radical, C2-10Alkenyl and C2-10Alkynyl, each of which is optionally substituted at each occurrence independently with one or more substituents selected from: halogen, -OH, -CN, -O-alkyl, -SH, -O, -S, -NH2and-NO2。L3Can be represented by the formula:is represented by the formula, wherein L4And L5Independently selected from the group consisting of a bond, alkylene, and heteroalkylene, each of which is independently selected from R12Optionally substituted with one or more groups of (a); left side of the handDenotes the point of attachment to the rest of the compound, RX is on the rightA bond, a succinimide moiety, or a hydrolyzed succinimide moiety, attached to a residue of the antibody construct; peptides are groups comprising 1 to 10 amino acids.

In some embodiments, the compound is:

or a salt thereof.

In some embodiments, for compounds or salts of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC), -L3Is represented by the formula:represent andindicates the point of attachment to the rest of the compound.

In some embodiments, for compounds or salts of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC), -L3Is represented by the formula:wherein RX comprises a reactive moiety, such as maleimide or a leaving group, n-0-9 andindicates the point of attachment to the rest of the compound.

In some embodiments, for compounds or salts of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC), -L3Is represented by the formula:denotes that RX is on the rightA bond to a residue of the antibody construct, a succinimide moiety or a hydrolysed succinimide moiety, n-0-9 and the left sideIndicates the point of attachment to the rest of the compound.

In certain embodiments, the compound is:

or a salt thereof.

Chemical entities having a carbon-carbon double bond or a carbon-nitrogen double bond may exist in either the Z-or E-form (or cis-or trans-form). In addition, some chemical entities may exist in various tautomeric forms. Unless otherwise indicated, the compounds described herein are also intended to include all Z-, E-and tautomeric forms.

"tautomer" refers to a molecule in which the transfer of a proton from one atom of the molecule to another atom of the same molecule is possible. In certain embodiments, the compounds presented herein exist as tautomers. Where tautomerization is likely to occur, there will be a chemical equilibrium of the tautomers. The exact ratio of tautomers depends on several factors including physical state, temperature, solvent and pH. Some examples of tautomeric equilibrium include:

in some embodiments, the compounds disclosed herein are used in different isotopically enriched forms, e.g., in2H、3H、11C、13C and/or14Enriched in the background of C. In a particular embodiment, the compound is deuterated at least one position. Such deuterated forms can be prepared by the procedures described in U.S. Pat. nos. 5,846,514 and 6,334,997. As described in U.S. patent nos. 5,846,514 and 6,334,997, deuteration can improve metabolic stability and/or efficacy, thereby increasing the duration of drug action.

Unless otherwise indicated, the compounds described herein are intended to include such compounds, which are only amongThe one or more isotopically enriched atoms differ in the presence thereof. For example, other than replacement of hydrogen by deuterium or tritium or by enrichment with hydrogen13C-or14In addition to the carbon substitution of C-, compounds having the structure of the present invention are within the scope of this disclosure.

The compounds of the present disclosure optionally contain unnatural proportions of atomic isotopes at one or more of the atoms that constitute such compounds. For example, the compounds may be isotopically-modified, such as for example deuterium (g: (b))2H) Tritium (a)3H) Iodine-125 (125I) Or carbon 14 (C)14C) And (4) marking. By using2H、11C、13C、14C、15C、12N、13N、15N、16N、16O、17O、14F、15F、16F、17F、18F、33S、34S、35S、36S、35Cl、37Cl、79Br、81Br and125isotopic substitution of I is contemplated. All isotopic variations of the compounds of the present invention, whether radioactive or not, are intended to be encompassed within the scope of the present invention.

In certain embodiments, some or all of the compounds disclosed herein1H atom quilt2H atom substitution. Methods for synthesizing deuterium-containing compounds are known in the art and include, by way of non-limiting example only, the following synthetic methods.

Deuterium substituted compounds are synthesized using various methods such as those described below: dean, Dennis c.; (iii) edit, Recent Advances In the Synthesis and Applications of radio complex for Drug Discovery and Development [ In: curr., pharm. Des., 2000; 6(10) ]2000, page 110; george w.; varma, Rajender S.the Synthesis of radio bound Compounds via organometallic Intermediates, Tetrahedron,1989,45(21), 6601-21; and Evans, E.Anthony.Synthesis of radiolaboratory compounds, J.Radioactive. chem.,1981,64(1-2), 9-32.

Deuterated starting materials are readily available and subjected to the synthetic methods described herein to provide for the synthesis of deuterium containing compounds. A number of deuterium containing reagents and building blocks are commercially available from Chemical suppliers such as Aldrich Chemical Co.

The compounds of the invention also include crystalline and amorphous forms, pharmaceutically acceptable salts, of those compounds, and active metabolites of these compounds that have the same type of activity, including, for example, polymorphs, pseudopolymorphs, solvates, hydrates, unsolvated polymorphs (including anhydrates), conformational polymorphs, and amorphous forms of the compounds, and mixtures thereof.

In some aspects, the present disclosure provides methods for treating cancer. In some embodiments, the present disclosure provides methods comprising administering to a subject in need thereof a conjugate, compound, or salt of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC).

In some aspects, the compounds of the present disclosure exhibit selective binding or agonistic properties for one receptor over another. In some embodiments, the compounds described herein selectively bind or modulate the activity of one toll-like receptor over another such as TLR8 and TLR 7. For example, a compound or salt of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC) may bind less strongly to TLR7, e.g. via K, as compared to TLR8dMeasured by value, e.g. K of compound to TLR7dIs K to TLR8dTwo or more times, or K for TLR8dOf an order of magnitude or more, or even two orders of magnitude or more. In certain embodiments, a compound or salt of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC) is more active on one toll-like receptor than another, such as TLR8 and TLR 7. In certain embodiments, the compounds of the present disclosure have an EC of 500nM or less50Agonizing TLR8 with the same compound with an EC greater than 1 μ M50Activating TLR 7. In certain embodiments, the compounds of the present disclosure are at least one order of magnitude or less than the amount of the same compound required to exhibit agonism to TLR7Even two orders of magnitude EC50To activate TLR 8.

Included in the present disclosure are salts, particularly pharmaceutically acceptable salts, of the compounds described herein. Compounds of the present disclosure having sufficiently acidic, sufficiently basic, or two functional groups can react with any of a number of inorganic bases and inorganic and organic acids to form salts. Alternatively, compounds which are inherently charged, such as those having quaternary nitrogen, may form salts with suitable counterions, such as halides, e.g. bromides, chlorides or fluorides, in particular bromides.

In some cases, the compounds described herein may exist as diastereomers, enantiomers, or other stereoisomeric forms. The compounds presented herein include all diastereomeric, enantiomeric and epimeric forms and suitable mixtures thereof. The separation of stereoisomers may be carried out by chromatography or by forming diastereomers and separating them by recrystallization or chromatography or any combination thereof. (Jean Jacques, Andre Collet, SamuelH.Wilen, "Enantiomers, racemes And solutions", John Wiley And Sons, Inc.,1981, the disclosure of which is incorporated herein by reference). Stereoisomers may also be obtained by stereoselective synthesis.

The methods and compositions described herein include the use of amorphous forms as well as crystalline forms (also referred to as polymorphs). The compounds described herein may be in the form of pharmaceutically acceptable salts. Active metabolites of these compounds having the same type of activity are also included within the scope of the present disclosure. In addition, the compounds described herein may exist in unsolvated forms as well as solvated forms with pharmaceutically acceptable solvents such as water, ethanol, and the like. Solvated forms of the compounds presented herein are also considered disclosed herein.

In certain embodiments, a compound of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC) or a salt of the compound may be a prodrug, e.g., wherein the hydroxyl group in the parent compound is present as an ester or carbonate, or the carboxylic acid present in the parent compound is present as an ester. The term "prodrug" is intended to encompass compounds that are converted to the agents of the present disclosure under physiological conditions. One method for making prodrugs is to include one or more selected moieties that hydrolyze under physiological conditions to reveal the desired molecule. In other embodiments, the prodrug is transformed by the enzymatic activity of the host animal (e.g., a particular target cell in the host animal). For example, esters or carbonates (e.g., esters or carbonates of alcohols or carboxylic acids and esters of phosphonic acids) are preferred prodrugs of the present disclosure.

Prodrug forms of the compounds described herein are included within the scope of the claims, where the prodrug is metabolized in vivo to produce a compound of any of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC) as described herein. In some cases, some of the compounds described herein may be another derivative or a prodrug of the active compound.

Prodrugs are often useful because, in some cases, they may be easier to administer than the parent drug. For example, they may be bioavailable by administration whereas the parent is not. Prodrugs can help enhance the cell permeability of a compound relative to the parent drug. The prodrug may also have increased solubility in pharmaceutical compositions compared to the parent drug. Prodrugs can be designed as reversible drug derivatives that act as modifiers to enhance drug transport to site-specific tissues or to increase drug retention within cells.

In some embodiments, the design of the prodrug increases the lipophilicity of the agent. In some embodiments, the design of the prodrug increases the effective aqueous solubility. See, e.g., Fedorak et al, am.J.Physiol.,269: G210-218 (1995); McLoed et al, Gastroenterol,106: 405-; hochhaus et al, biomed.Chrom, 6:283-286 (1992); larsen and h.bundgaard, int.j.pharmaceuticals, 37,87 (1987); larsen et al, int.j.pharmaceuticals, 47,103 (1988); sinkula et al, J.Pharm.Sci.,64:181-210 (1975); t.higuchi and v.stella, Pro-drugs as Novel Delivery Systems, vol.14 of the a.c.s.symposium Series; and Edward B.Roche, Bioreversible Carriers in drug design, American Pharmaceutical Association and Pergamon Press,1987, the disclosures of which are incorporated herein). According to another embodiment, the present disclosure provides a method of producing the above compound. The compounds may be synthesized using conventional techniques. Advantageously, these compounds can be conveniently synthesized from readily available starting materials.

Synthetic chemical Transformations and methods for synthesizing the compounds described herein are known in the art and include, for example, r.larock, Comprehensive Organic Transformations (1989); t.w.greene and p.g.m.wuts, Protective Groups in Organic Synthesis, 2 nd edition (1991); fieser and m.fieser, Fieser and Fieser's Reagents for Organic Synthesis (1994); and L.Patquette, eds., Encyclopedia of Reagents for Organic Synthesis (1995).

Connector

The compounds and salts described herein may be used with what is also referred to herein as L3Such as peptide linker binding. In certain embodiments, the linker is also bound to the antibody construct and is referred to as an antibody construct conjugate or conjugate. The linker of the conjugates described herein may not affect the binding of the active portion (e.g., antigen binding domain, Fc domain, target binding domain, antibody, agonist, etc.) of the conjugate to the target (which may be a cognate binding partner such as an antigen). The conjugate may comprise a plurality of linkers, each linker having one or more attached compounds. These linkers may be the same linker or different linkers. Some exemplary linkers (L)3) Described in the previous section entitled "compounds" and additional linkers are described in this section.

The linker may be short, flexible, rigid, cleavable, non-cleavable, hydrophilic or hydrophobic. The linker may contain segments with different characteristics, such as flexible segments or rigid segments. The linker may be chemically stable to the extracellular environment, e.g., chemically stable in the blood stream, or may include labile or selectively stable linkages. Linkers can include linkages designed to cleave and/or ablate (or otherwise disrupt) specifically or non-specifically within a cell. The cleavable linker may be sensitive to an enzyme. The cleavable linker may be cleaved by an enzyme such as a protease. The cleavable linker may comprise a valine-citrulline linker or a valine-alanine peptide. The valine-citrulline-or valine-alanine-containing linker may contain a pentafluorophenyl group. The valine-citrulline-or valine-alanine-containing linker may contain a maleimide or succinimide group. The valine-citrulline-or valine-alanine-containing linker may contain a p-aminobenzyl alcohol (PABA) group or p-aminobenzyl carbamate (PABC).

The valine-citrulline-or valine-alanine-containing linker can contain a PABA group and a pentafluorophenyl group. The valine-citrulline-or valine-alanine-containing linker can contain a PABA group and a maleimide or succinimide group.

The non-cleavable linker may be protease insensitive. The non-cleavable linker may be a maleimidocaproyl linker. The maleimidocaproyl linker may comprise N-maleimidomethylcyclohexane-1-carboxylate. The maleimidocaproyl linker may contain a succinimide group. The maleimidocaproyl linker may contain a pentafluorophenyl group. The linker may be a combination of a maleimidocaproyl group and one or more polyethylene glycol molecules. The linker may be a maleimide-PEG 4 linker. The linker may be a combination of a maleimidocaproyl linker containing a succinimide group and one or more polyethylene glycol molecules. The linker may be a combination of a maleimidocaproyl linker containing a pentafluorophenyl group and one or more polyethylene glycol molecules. The linker may contain a maleimide attached to a polyethylene glycol molecule, where the polyethylene glycol may allow for more linker flexibility or may be used to extend the linker. The linker may be a (maleimidocaproyl) - (valine-citrulline) - (p-aminobenzyloxycarbonyl) linker. The linker may be a linker suitable for attachment to an engineered cysteine (THIOMAB). The THIOMAB linker can be a (maleimidocaproyl) - (valine-citrulline) - (p-aminobenzyloxycarbonyl) -linker.

The linker may also comprise alkylene, alkenylene, alkynylene, polyether, polyester, polyamide groups and also polyamino acids, polypeptides, cleavable peptides or aminobenzyl carbamates. The linker may contain a maleimide at one end and an N-hydroxysuccinimide ester at the other end. The linker may contain lysine with an acetylated N-terminal amine and a valine-citrulline cleavage site. The linker may be a linkage produced by microbial transglutaminase, where the linkage may be produced between an amine-containing moiety and a moiety engineered to contain glutamine by an enzyme that catalyzes the formation of a bond between the acyl group of the glutamine side chain and a primary amine of the lysine chain. The linker may contain a reactive primary amine. The linker may be a sortase a linker. The sortase a linker may be generated from sortase a fusing an LXPTG recognition motif to an N-terminal GGG motif to regenerate a native amide bond. The resulting linker may thus link the part linked to the LXPTG recognition motif with the part linked to the N-terminal GGG motif.

In the conjugates described herein, the compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC) is referred to herein also as L3Is linked to the antibody construct. As used herein, L3May be selected from any of the linker moieties discussed herein. The linker linking the compound or salt to the antibody construct of the conjugate may be short, long, hydrophobic, hydrophilic, flexible or rigid, or may be composed of segments each independently having one or more of the above properties, such that the linker may comprise segments having different properties. Linkers can be multivalent, such that they can link more than one compound or salt to a single site on the antibody construct, or monovalent, such that they link a single compound or salt to a single site on the antibody construct.

Linker of the disclosure (L)3) Can have from about 10 to about 500 atoms in the linker, such as in the linkerAbout 10 to about 400 atoms, such as about 10 to about 300 atoms. In certain embodiments, the linkers of the present disclosure have from about 30 to about 400 atoms, such as from about 30 to about 300 atoms, in the linker.

As understood by those skilled in the art, a linker may link a compound or salt of any of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC) to the antibody construct by a covalent bond between the linker and the antibody construct and compound. As used herein, the expression "linker" is intended to include (i) a linker in unconjugated form, including the ability to attach the linker to benzazepineA functional group to which the compound is covalently attached, and a functional group capable of covalently attaching a linker to the antibody construct; (ii) a partially conjugated form of a linker comprising a functional group capable of covalently linking the linker to the antibody construct and to any one of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC), or vice versa; and (iii) a linker in fully conjugated form which covalently links the compound or salt of any one of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC) to the antibody construct. One embodiment relates to a conjugate formed by contacting an antibody construct that binds to a cell surface receptor or a tumor-associated antigen expressed on a tumor cell with a linker-compound described herein under conditions in which the linker-compound is covalently linked to the antibody construct. One embodiment relates to a method of making a conjugate formed by contacting a linker-compound described herein under conditions in which the linker-compound is covalently linked to an antibody construct. One embodiment relates to a method of stimulating immune activity in a cell expressing CD40, comprising contacting the cell with a conjugate capable of binding to a cell as described herein under conditions in which the conjugate binds to the cell.

Describes a number of benzenes useful for the synthesis ofAza derivativesExemplary multivalent linkers to which the compounds are linked to the antibody construct. For example,linker technology has the potential to confer good physicochemical properties to the high-DAR conjugates. As will be shown below, in the following,linker technology is based on the incorporation of drug molecules into a solubilized polyacetal backbone via ester bond sequences. This approach produces highly loaded conjugates (DAR up to 20) while maintaining good physicochemical properties. As shown in the scheme below, this process can be used with benzazepinesThe compounds are used together.

In order to utilize the description in the above schemeLinker technology, aliphatic alcohols may be present or introduced into the benzazepineIn the compound. The alcohol moiety is then conjugated to an alanine moiety, which is then incorporated syntheticallyIn the linker. Liposome processing of the conjugate in vitro releases the parent alcohol-containing drug.

By way of example and not limitation, the following describes some cleavable and non-cleavable linkers that may be included in the conjugates described herein.

The cleavable linker may be in vivoCleavable in vitro and in vivo. The cleavable linker may comprise a chemically or enzymatically labile or degradable linkage. The cleavable linker may rely on intracellular processes to release benzazepineCompounds such as reduction in the cytoplasm, exposure to acidic conditions in lysosomes, or cleavage by specific proteases or other enzymes within the cell. The cleavable linker may incorporate one or more chemical bonds, which are chemically or enzymatically cleavable, while the remainder of the linker may be non-cleavable.

The linker may contain chemically labile groups such as hydrazone and/or disulfide groups. Linkers comprising chemically labile groups can take advantage of the differential nature between plasma and some cytoplasmic compartments. Can promote benzazepineIntracellular conditions under which the compound releases hydrazone-containing linkers can be the acidic environment of endosomes and lysosomes, while disulfide-containing linkers can be reduced in the cytosol, which can contain high thiol concentrations such as glutathione. The plasma stability of linkers containing chemically labile groups can be increased by introducing steric hindrance using substituents near the chemically labile groups.

Acid labile groups, such as hydrazones, can remain intact during systemic circulation in blood neutral pH environments (pH 7.3-7.5) and once the antibody construct benzazepineThe compound conjugates undergo hydrolysis and release of benzazepine upon internalization into the intracellular mildly acidic endosomal (pH 5.0-6.5) and lysosomal (pH 4.5-5.0) compartmentsA compound is provided. This pH-dependent release mechanism may be associated with non-specific release of the drug. To increase the stability of the hydrazone group of the linkerQualitatively, the linker can be altered by chemical modifications such as substitutions, allowing modulation to achieve more efficient release in lysosomes while minimizing circulation losses.

The hydrazone-containing linker may contain additional cleavage sites, such as additional acid labile cleavage sites and/or enzymatically labile cleavage sites. Antibody constructs including exemplary hydrazone-containing linkersThe compound conjugates can include, for example, the following structures:

(Ia)

(Ib)

(Ic)

wherein D is a compound or salt of any one of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), respectively, and Ab is the antibody construct, and n represents the number of compound-binding Linkers (LPs) bound to the antibody construct. In certain linkers, such as linker (Ia), the linker may comprise two cleavable groups, a disulfide, and a hydrazone moiety. For such linkers, unmodified free benzazepinesEffective release of the compound may require an acidic pH or disulfide reduction and an acidic pH. Linkers such as (Ib) and (Ic) having a single hydrazone cleavage site may be effective.

Other acid labile groups that may be included in a linker include cis-aconityl containing linkers. Cis-aconityl chemistry can use carboxylic acids juxtaposed to an amide bond to accelerate amide hydrolysis under acidic conditions.

The cleavable linker may also comprise a disulfide group. Disulfides can be thermodynamically stable at physiological pH and can be designed to release benzazepine upon intracellular internalizationA compound, wherein the cytosol can provide a significantly more reduced environment compared to the extracellular environment. Cleavage of disulfide bonds may require the presence of a cytoplasmic thiol cofactor, such as (reduced) Glutathione (GSH), so that disulfide-containing linkers may be reasonably stable in circulation to selectively release benzazepine in the cytosolA compound is provided. Intracellular zymoprotein disulfide isomerase or similar enzymes capable of cleaving disulfide bonds may also promote preferential cleavage of intracellular disulfide bonds. GSH may be present in cells at concentrations ranging from 0.5-10mM, with GSH or cysteine (the most abundant low molecular weight thiols) at significantly lower concentrations, about 5 μ M in circulation. Tumor cells where irregular blood flow may lead to hypoxic conditions may lead to enhanced activity of the reductase and thus to even higher glutathione concentrations. The in vivo stability of disulfide-containing linkers can be enhanced by chemical modification of the linker, e.g., using steric hindrance adjacent to the disulfide bond.

Antibody constructs benzazepinesCompound conjugates (including exemplary disulfide-containing linkers) can include the following structures:

(IIa)

(IIb)

(IIc)

wherein D is a compound or salt of any one of formulas (IA), (IIA), (IB), (IIB), (IIIA) and (IIIB), respectively, and Ab is an antibody construct, n represents a linker (L) that binds to the antibody construct3) The number of compounds bound, and R at each occurrence, are independently selected from, for example, hydrogen or alkyl. Increasing steric hindrance adjacent to the disulfide bond may increase the stability of the linker. When one or more R groups are selected to be lower alkyl groups such as methyl, structures such as (IIa) and (IIc) may exhibit increased in vivo stability.

Another type of linker that can be used is one that is specifically cleaved by an enzyme. For example, the linker may be cleaved by lysosomal enzymes. Such linkers may be peptide-based, or may include a peptide region that may serve as a substrate for an enzyme. Peptide-based linkers are more stable in plasma and extracellular environments than chemically labile linkers.

Peptide bonds can have good serum stability, since lysosomal proteolytic enzymes have very low activity in blood due to endogenous inhibitors and the unfavorably high pH of blood compared to lysosomes. Release of benzazepine from antibody constructs can occur due to the action of lysosomal proteases, such as cathepsin and plasminA compound is provided. These proteases may be present at elevated levels in certain tumor tissues. The linker can be cleaved by lysosomal enzymes. The lysosomal enzyme may be, for example, cathepsin B, cathepsin S, β -glucuronidase or β -galactosidase.

The cleavable peptide may be selected from tetrapeptides such as Gly-Phe-Leu-Gly, Ala-Leu-Ala-Leu or dipeptides such as Val-Cit, Val-Ala and Phe-Lys. Dipeptides can have lower hydrophobicity compared to longer peptides.

A variety of dipeptide-based cleavable linkers are useful for the antibody constructs benzazepines described hereinIn a compound conjugate.

The enzymatically cleavable linker may comprise a self-immolative (self-immolative) spacer to convert benzazepineThe compound is spatially separated from the enzymatic cleavage site. Benzazepine compoundsDirect attachment of a compound to a peptide linker can result in benzazepinesCompounds or benzazepinesProteolytic release of the amino acid adduct of the compound, thereby impairing its activity. The use of self-immolative spacers may allow for the elimination of fully active chemically unmodified benzazepines following hydrolysis of amide bondsA compound is provided.

A self-immolative spacer can be a bifunctional p-aminobenzyl alcohol group which can be linked to a peptide through an amino group to form an amide bond, while an amine-containing benzazepineThe compound may be attached to the benzylic hydroxy group of the linker via a carbamate functional group (to give a p-acylaminobenzylcarbamate, PABC). The resulting benzazepinesThe compounds may be activated following protease-mediated cleavage, resulting in a1, 6-elimination reaction, thereby releasing the unmodified benzazepineCompound, carbon dioxide and linker residues. The following scheme describes fragmentation and benzazepine of amidobenzyl carbamatesRelease of the compound:

wherein X-D represents an unmodified benzazepineA compound is provided.

Heterocyclic variants of such self-immolative groups are also described.

The enzymatically cleavable linker may be a β -glucuronic acid based linker. By cleavage of the beta-glucuronide glycosidic bond by the lysosomal enzyme beta-glucuronidase, benzazepine can be achievedSimple release of the compound. This enzyme may be present in large amounts in lysosomes and may be overexpressed in some tumor types, whereas extracellular enzyme activity may be low. Due to the hydrophilic nature of beta-glucuronide, beta-glucuronic acid-based linkers can be used to avoid benzazepine in antibody constructsThe tendency of the compound conjugate to aggregate. In certain embodiments, a β -glucuronic acid-based linker can link an antibody construct to a hydrophobic benzazepineAnd (4) connecting the compounds. The following scheme describes the antibody construct benzazepine containing a beta-glucuronic acid-based linkerCompound conjugates for releasing benzazepinesCompound (D):

wherein Ab represents an antibody construct.

Various cleavable β -glucuronic acid-based linkers have been described for linking drugs such as auristatins, camptothecin and doxorubicin analogs, CBI minor groove binders, and pregabalin (psymberin) to antibodies. These beta-glucuronic acid-based linkers are useful in the conjugates described herein. In certain embodiments, the enzymatically cleavable linker is a β -galactoside based linker. Beta-galactosides are present in large amounts in lysosomes, whereas extracellular enzyme activity is low.

In addition, benzazepines containing phenolic groupsThe compound may be covalently bonded to the linker through the phenolic hydroxyl oxygen. One such linker relies on a method in which diamino-ethane "steric linkages are used in combination with traditional" PABO-based "self-immolative groups to deliver phenols.

A cleavable linker may include a non-cleavable moiety or segment, and/or a cleavable segment or moiety may be included in an otherwise non-cleavable linker to render it cleavable. By way of example only, polyethylene glycol (PEG) and related polymers may include a cleavable group in the polymer backbone. For example, the polyethylene glycol or polymer linker may comprise one or more cleavable groups, such as disulfide, hydrazone, or dipeptide.

Other degradable linkages that may be included in the linker may include through a PEG carboxylic acid or activated PEG carboxylic acid with a benzazepineEster linkages formed by reaction of alcohol groups on compounds in which such ester groups can be hydrolyzed under physiological conditions to release benzazepinesA compound is provided. Hydrolytically degradable linkages may include, but are not limited to, carbonate linkages; imine linkages resulting from the reaction of an amine and an aldehyde; a phosphate ester bond formed by reacting an alcohol with a phosphate group; acetal linkages, i.e., the reaction product of an aldehyde and an alcohol; an orthoester linkage, i.e., the reaction product of a formate ester and an alcohol; and oligonucleotide linkages formed from phosphoramidite groups, including but not limited to, at the end of a polymer and the 5' hydroxyl group of an oligonucleotide.

The linker may contain an enzymatically cleavable peptide moiety, for example, a linker comprising structural formula (IIIa), (IIIb), (IIIc), or (IIId):

(IIIa)

(IIIb)

(IIIc)

(IIId)

wherein: "peptide" means a peptide cleavable by a lysosomal enzyme (shown in the N → C orientation, wherein the peptide includes an amino and carboxyl "terminus"); t represents a polymer comprising one or more ethylene glycol units or alkylene chains or a combination thereof; raSelected from the group consisting of hydrogen, alkyl, sulfonate, and methyl sulfonate; ryIs hydrogen or C1-4Alkyl- (O)r-(C1-4Alkylene radical)s-G1Or C1-4Alkyl- (N) - [ (C)1-4Alkylene) -G1]2；RzIs C1-4Alkyl- (O)r-(C1-4Alkylene radical)s-G2；G1Is SO3H、CO2H. PEG 4-32 or a sugar moiety; g2Is SO3H、CO2H or a PEG 4-32 moiety; r is 0 or 1; s is 0 or 1; p is an integer ranging from 0 to 5; q is 0 or 1; x is 0 or 1; y is 0 or 1;represents the point of attachment of a linker to a compound or salt of any one of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB) or (IIIC); and denotes the point of attachment to the remainder of the linker.

In certain embodiments, the peptide may be selected from natural amino acids, unnatural amino acids, or combinations thereof. In certain embodiments, the peptide may be selected from a tripeptide or a dipeptide. In particular embodiments, the dipeptide may comprise an L-amino acid and is selected from: Val-Cit; Cit-Val; Ala-Ala; Ala-Cit; Cit-Ala; Asn-Cit; Cit-Asn; Cit-Cit; Val-Glu; Glu-Val; Ser-Cit; Cit-Ser; Lys-Cit; Cit-Lys; Asp-Cit; Cit-Asp; Ala-Val; Val-Ala; Phe-Lys; Lys-Phe; Val-Lys; Lys-Val; Ala-Lys; Lys-Ala; Phe-Cit; Cit-Phe; Leu-Cit; Cit-Leu; Ile-Cit; Cit-Ile; Phe-Arg; Arg-Phe; Cit-Trp; and Trp-Cit or a salt thereof.

Exemplary embodiments of linkers according to structural formula (IIIa) are shown below (as shown, the linker comprises a reactive group suitable for covalently linking the linker to an antibody construct):

(IIIa.1)

(IIIa.2)

(IIIa.3)

(IIIa.4)

(IIIa.7)

(IIIa.8)

whereinDenotes a linker (L)3) And a compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC).

Exemplary embodiments of linkers according to structural formulae (IIIb), (IIIc), or (IIId) that can be included in the conjugates described herein can include the linkers shown below (as shown, the linkers can include reactive groups suitable for covalently linking the linker to the antibody construct:

(IIIb.1)

(IIIb.2)

(IIIb.3)

(IIIb.4)

(IIIb.5)

(IIIb.6)

(IIIb.7)

(IIIb.8)

(IIIb.9)

(IIIb.10)

(IIIb.11)

(IIIb.12)

(IIIb.13)

(IIIb.14)

(IIIb.15)

(IIIb.16)

(IIIb.17)

(IIIb.18)

(IIIb.19)

(IIIc.1)

(IIIc.2)

(IIIc.3)

(IIIc.4)

(IIIc.5)

(IIIc.6)

(IIIc.7)

(IIId.1)

(IIId.2)

(IIId.3)

(IIId.4)

whereinRepresents the point of attachment to a compound or salt of any one of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC).

The linker may contain an enzymatically cleavable sugar moiety, e.g., a linker comprising structural formula (IVa), (IVb), (IVc), (IVd), or (IVe) or a salt thereof:

(IVa)

(IVb)

(IVc)

(IVd)

(IVe)

wherein: q is 0 or 1; r is 0 or 1; x1Is CH2O or NH;denotes a linker (L)3) (iii) the point of attachment to a compound or salt of any one of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC); and denotes the point of attachment to the rest of the linker.

Antibody constructs as described herein may be included in benzazepinesExemplary embodiments of linkers according to structural formula (IVa) in the compound conjugates can include the linkers shown below (as shown, the linkers include groups suitable for covalently linking the linker to the antibody construct):

(IVa.1)

(IVa.2)

(IVa.3)

(IVa.4)

(IVa.5)

(IVa.6)

(IVa.7)

(IVa.8)

(IVa.9)

(IVa.10)

(IVa.11)

(IVa.12)

whereinDenotes a linker (L)3) And a compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC).

Exemplary embodiments of linkers according to structural formula (IVb) that can be included in the conjugates described herein include the linkers shown below (as shown, the linkers include groups suitable for covalently linking the linker to an antibody construct):

(IVb.1)

(IVb.1)

(IVb.2)

(IVb.3)

(IVb.4)

(IVb.5)

(IVb.6)

(IVb.7)

(IVb.8)

(IVb.9)

(IVb.10)

whereinDenotes a linker (L)3) And a compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC).

Exemplary embodiments of linkers according to structural formula (IVc) that can be included in the conjugates described herein include the linkers shown below (as shown, the linkers include groups suitable for covalently linking the linker to an antibody construct):

(IVc.1)

(IVc.2)

(IVc.3)

(IVc.4)

(IVc.5)

(IVc.6)

(IVc.7)

(IVc.8)

(IVc.9)

(IVc.10)

(IVc.11)

whereinDenotes a linker (L)3) And a compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC).

Exemplary embodiments of linkers according to structural formula (IVd) that can be included in the conjugates described herein include the linkers shown below (as shown, the linkers include groups suitable for covalently linking the linker to an antibody construct):

(IVd.1)

(IVd.2)

(IVd.3)

(IVd.4)

(IVd.5)

(IVd.6)

whereinDenotes a linker (L)3) And a compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC).

Exemplary embodiments of linkers according to structural formula (IVe) that can be included in the conjugates described herein include the linkers shown below (as shown, the linkers include groups suitable for covalently linking the linker to an antibody construct):

(IVe.1)

(IVe.2)

whereinDenotes a linker (L)3) And a compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC).

Although a cleavable linker may provide certain advantages, a linker comprising a conjugate described herein need not be cleavable. For non-cleavable linkers, benzazepineCompound release may not be dependent on the differential nature between plasma and some cytoplasmic compartments. Benzazepine compoundsRelease of Compounds in antibody constructs benzazepine via antigen-mediated endocytosisInternalization and delivery of the compound conjugate to the lysosomal compartment occurs, wherein the antibody construct can be degraded to the level of amino acids by intracellular proteolytic degradation. The process may release benzazepineDerivatives of benzazepineA compound, a linker and an amino acid residue or residue to which a linker is covalently attached. Benzazepine derivatives with antibody constructs having a cleavable linkerCompound conjugates with non-cleavable linkersBenzazepines of compound conjugatesThe compound derivatives may have higher hydrophilicity and lower membrane permeability, which may lead to reduced bystander effects and reduced non-specific toxicity. Antibody constructs benzazepine with non-cleavable linkerThe compound conjugates can have a higher ratio of benzazepine to antibody construct with a cleavable linker in circulationThe compound conjugate has higher stability. The non-cleavable linker may comprise an alkylene chain, or may be polymeric, such as for example based on a polyalkylene glycol polymer, an amide polymer, or may comprise segments of an alkylene chain, a polyalkylene glycol, and/or an amide polymer. The linker may contain polyethylene glycol segments having 1 to 6 ethylene glycol units.

The linker may be non-cleavable in vivo, for example a linker according to the formula:

(Va)

(Vb)

(Vc)

(Vd)

(Ve)

(Vf)

wherein: raSelected from the group consisting of hydrogen, alkyl, sulfonate, and methyl sulfonate; rxIs a reactive moiety comprising a functional group capable of covalently linking the linker to the antibody construct; anddenotes a linker (L)3) And a compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC).

Exemplary embodiments of linkers according to structural formulae (Va) - (Vf) that can be included in the conjugates described herein include the linkers shown below (as shown, the linkers include groups suitable for covalently linking the linker to the antibody construct, anddenotes a linker (L)3) And the point of attachment of a compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC):

(Va.1)

(Vc.1)

(Vc.2)

(Vd.1)

(Vd.2)

(Vd.3)

(Vd.4)

(Ve.1)

the linking group used to attach the linker to the antibody construct may be electrophilic in nature and include, for example, maleimide groups, alkynes, alkynates, allenes and allenes, activated disulfides, active esters such as NHS esters and HOBt esters, haloformates, acid halides, alkyl halides, and benzyl halides such as haloacetamides. There are also emerging technologies related to "self-stabilizing" maleimides and "bridged disulfides", which can be used in accordance with the present disclosure.

Maleimide groups are often used to prepare conjugates because they are specific for reacting with thiol groups (e.g., cysteine groups) of antibodies of the conjugates. The reaction between the thiol group of the antibody and the drug with a linker comprising a maleimide group proceeds according to the following scheme:

the reverse reaction leading to elimination of maleimide from sulfur-substituted (thio-substituted) succinimides may also occur. This reverse reaction is undesirable because the maleimide group may subsequently react with another available thiol group, such as other proteins with available cysteines in vivo. Thus, the reverse reaction can destroy the specificity of the conjugate. One way to prevent the reverse reaction is to incorporate a basic group into the linking group shown in the above scheme. Without wishing to be bound by theory, the presence of a basic group may increase the nucleophilicity of nearby water molecules to facilitate ring-opening hydrolysis of the succinimide group. The hydrolyzed form of the linker is resistant to decojugation in the presence of plasma proteins. So-called "self-stabilizing" linkers provide improved stability to the conjugate. Representative schematic diagrams are shown below:

the hydrolysis reaction schematically represented above may occur at the carbonyl group of the succinimide group. Thus, two possible isomers may be produced, as shown below:

the nature of the base and the distance between the base and the maleimide group can be modified to modulate the rate of hydrolysis of the sulfur-substituted succinimide group and optimize the delivery of the conjugate to the target by, for example, improving the specificity and stability of the conjugate.

Suitable for inclusion in a linker described herein (e.g., any L described herein having a maleimide group) prior to conjugation to an antibody construct3) The base in (b) may facilitate hydrolysis of a nearby succinimide group formed after conjugation of the antibody construct to the linker. The base may include, for example, an amine (e.g., -N (R)26)(R27) Wherein R is26And R27Independently selected from H and C1-6Alkyl), nitrogen-containing heterocycles (e.g., 3-to 12-membered heterocycles comprising one or more nitrogen atoms and optionally one or more double bonds), amidines, guanidines, and carbocyclic or heterocyclic rings substituted with one or more amine groups (e.g., 3-to 12-membered aromatic or non-aromatic rings, optionallyIncluding hetero atoms, e.g. nitrogen atoms, and being of the type-N (R)26)(R27) Wherein R is substituted with one or more amines of (A), wherein R is26And R27Independently selected from H or C1-6Alkyl groups). The basic unit may be substituted with a maleimide group, for example, in the form- (CH)2)mThe alkylene chain of (a) is separated, wherein m is an integer from 0 to 10. The alkylene chain may be optionally substituted with other functional groups as described herein.

Linkers (L) as described herein having a Maleimide group3) Electron withdrawing groups such as, but not limited to, the following may be included: -c (O) R, ═ O, -CN, -NO2、-CX3、-X、-COOR、-CONR2、-COR、-COX、-SO2R、-SO2OR、-SO2NHR、-SO2NR2、PO3R2、-P(O)(CH3)NHR、-NO、-NR3 +、-CR＝CR2and-C ≡ CR, wherein each R is independently selected from H and C1-6Alkyl and each X is independently selected from F, Br, Cl and I. Self-stabilizing linkers may also include aryl groups such as phenyl, or heteroaryl groups such as pyridine, groups optionally substituted with electron withdrawing groups, such as those described herein.

Examples of self-stabilizing linkers are provided, for example, in U.S. patent publication No. 2013/0309256, which linkers are incorporated herein by reference. It is to be understood that the self-stabilizing linkers used in conjunction with the compounds of the present invention may be equivalently described as linkers comprising unsubstituted maleimides, linkers comprising sulfur-substituted succinimides, or linkers comprising sulfur-substituted succinimides that are hydrolytically ring opened.

In certain embodiments, a linker of the disclosure (L)3) Comprising a stabilizing linker moiety selected from the group consisting of:

in the scheme provided above, the bottom structure may be referred to as (maleimido) -DPR-Val-Cit-PAB, where DPR refers to diaminopropionic acid, Val refers to valine, Cit refers to citrulline, and PAB refers to p-aminobenzylAn alkylcarbonyl group.Represents the point of attachment to a compound or salt of any one of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC).

Methods for bridging a pair of sulfhydryl groups derived from reduction of a native hinge disulfide bond have been disclosed and are described in the schematic below. One advantage of this approach is the ability to synthesize homogeneous DAR4 conjugates by fully reducing IgG (to give 4 pairs of thiol groups from interchain disulfides) and then reacting with 4 equivalents of alkylating agent. Conjugates containing a "bridged disulfide" are said to have increased stability.

Similarly, as described below, maleimide derivatives capable of bridging a pair of thiol groups have been developed.

Linker of the disclosure L3May contain the following structural formula (VIa), (VIb) or (VIc):

(VIa)

(VIb)

(VIc)

or a salt thereof, wherein: rqIs H or-O- (CH)2CH2O)11-CH3(ii) a x is 0 or 1; y is 0 or 1; g2is-CH2CH2CH2SO3H or-CH2CH2O-(CH2CH2O)11-CH3；Rwis-O-CH2CH2SO3H or-NH (CO) -CH2CH2O-(CH2CH2O)12-CH3(ii) a And denotes the point of attachment to the rest of the linker.

Exemplary embodiments of linkers according to structural formulae (VIa) and (VIb) that can be included in the conjugates described herein can include the linkers shown below (as shown, the linkers can include groups suitable for covalently linking the linker to the antibody construct):

(VIc.1)

(VIa.2)

(VIa.3)

(VIa.4)

(VIb.1)

(VIb.2)

(VIb.3)

(VIb.4)

(VIb.6)

(VIb.7)

(VIb.8)

whereinDenotes a linker (L)3) And a compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC).

Antibody constructs as described herein may be included in benzazepinesExemplary embodiments of linkers according to structural formula (VIc) in the compound conjugates can include the linkers shown below (as shown, the linkers can include groups suitable for covalently linking the linker to the antibody construct):

(VIc.1)

(VIc.2)

(VIc.3)

(VIc.4)

(VIc.5)

(VIc.6)

whereinDenotes a linker (L)3) And a compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC).

As will be appreciated by the skilled artisan, the choice of linker for a particular conjugate can be influenced by a variety of factors including, but not limited to, the point of attachment to the antibody construct (e.g., lys, cys, or other amino acid residue), the structural limitations of the drug pharmacophore, and the lipophilicity of the drug. The particular linker selected for the conjugate should seek to balance these different factors for a particular antibody construct/drug combination.

For example, it has been observed that the conjugate achieves killing of bystander antigen-negative cells present in the vicinity of antigen-positive tumor cells. The mechanism by which the conjugate kills bystander cells suggests that metabolites formed during intracellular processing of the conjugate may play a role. The neutral cytotoxic metabolites produced by the metabolism of the conjugate in the antigen-positive cells appear to play a role in bystander cell killing, while the diffusion of charged metabolites across the membrane into the culture medium, or the passage of the culture medium across the membrane, can be prevented and therefore do not affect bystander killing. In certain embodiments, the linker is selected to attenuate a bystander killing effect caused by a cellular metabolite of the conjugate. In certain embodiments, the linker is selected to increase the bystander killing effect.

The nature of the linker or linker-compound may also affect aggregation of the conjugate under conditions of use and/or storage. Generally, conjugates reported in the literature contain no more than 3-4 drug molecules per antibody molecule. Attempts to obtain higher drug-to-antibody ratios ("DAR") have generally failed,especially if both the drug and the linker are hydrophobic due to aggregation of the conjugate. In many cases, DAR above 3-4 may be beneficial as a means to increase efficacy. In benzazepineWhere the compound is more hydrophobic in nature, it may be desirable to select a relatively hydrophilic linker as a means of reducing aggregation of the conjugate, particularly where a DAR of greater than 3-4 is required. Thus, in certain embodiments, the linker incorporates a chemical moiety that reduces aggregation of the conjugate during storage and/or use. The linker may incorporate polar or hydrophilic groups, such as charged groups or groups that are charged at physiological pH, to reduce aggregation of the conjugate. For example, the linker may incorporate a charged group, such as a salt or group that is deprotonated at physiological pH, such as a carboxylate, or protonated, such as an amine.

In particular embodiments, the aggregation of the conjugate during storage or use is less than about 40%, as determined by Size Exclusion Chromatography (SEC). In particular embodiments, the aggregation of the conjugate during storage or use is less than 35%, such as less than about 30%, such as less than about 25%, such as less than about 20%, such as less than about 15%, such as less than about 10%, such as less than about 5%, such as less than about 4% or even lower, as determined by Size Exclusion Chromatography (SEC).

Ligation of linkers to antibody constructs

The conjugates described herein can include a linker, such as a cleavable linker, such as a peptide linker, or a non-cleavable linker. The linker of the conjugates and methods described herein may not affect the binding of the active portion of the conjugate (e.g., the active portion includes the disclosed linker of formula (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), or (IIIC) or formula (IVA), (IVB), or (IVC) -the antigen binding domain, Fc domain, target binding domain, antibody, compound, or salt of a compound-the target (which may be a homologous binding partner such as an antigen) -the linker sequence may be between different portions of the conjugate (e.g., between the antibody construct of the present disclosure and the compound or salt) a linkage is formed. Wherein the conjugate comprises a plurality of linkers, which may be the same linker or different linkers.

The linker may be bound to the antibody construct through a bond between the antibody construct and the linker. The linker may be bound to the anti-tumor antigen antibody construct through a bond between the anti-tumor antigen antibody construct and the linker. The linker may be bound to the terminus of the amino acid sequence of the antibody construct, or may be bound to a side chain modification of the antibody construct, such as the side chain of a lysine, serine, threonine, cysteine, tyrosine, aspartic acid, glutamine, unnatural amino acid residue, or glutamic acid residue. The linker may be bound to the end of the amino acid sequence of the Fc domain or Fc region of the antibody construct, or may be bound to a side chain modification of the Fc domain or Fc region of the antibody construct, such as a side chain of a lysine, serine, threonine, cysteine, tyrosine, aspartic acid, glutamine, an unnatural amino acid residue, or a glutamic acid residue. The linker may be bound to the terminus of the amino acid sequence of the Fc domain of the antibody construct, or may be bound to a side chain modification of the Fc domain of the antibody construct, such as a side chain of a lysine, serine, threonine, cysteine, tyrosine, aspartic acid, glutamine, unnatural amino acid residue, or glutamic acid residue.

The linker may be bound to the antibody construct at the hinge cysteine. The linker may be bound to the antibody construct at the light chain constant domain lysine. The linker may be bound to the antibody construct at the heavy chain constant domain lysine. The linker may be bound to the antibody construct at an engineered cysteine in the light chain. The linker may be bound to the antibody construct at a lysine in the Fc region. The linker may be bound to the antibody construct at the Fc domain lysine. The linker may be bound to the antibody construct at a cysteine in the Fc region. The linker may be bound to the antibody construct at the Fc domain cysteine. The linker may be bound to the antibody construct at a light chain glutamine (e.g., an engineered glutamine). The linker may be bound to the antibody construct at the heavy chain glutamine (e.g., engineered glutamine). The linker may be bound to the antibody construct at an unnatural amino acid engineered into the light chain. The linker may be bound to the antibody construct at an unnatural amino acid engineered into the heavy chain. The amino acids may be engineered into the amino acid sequence of the antibody construct, such as a linker of the conjugate. The engineered amino acids may be added to the sequence of existing amino acids. The engineered amino acids may replace one or more existing amino acids of the amino acid sequence.

The linker may be conjugated to the antibody construct via a sulfhydryl group on the antibody construct. The linker may be conjugated to the antibody construct via a primary amine on the antibody construct. The linker may be conjugated to the antibody construct via a residue of a non-natural amino acid (e.g., a ketone moiety) on the antibody construct.

The Fc domain of the antibody construct is capable of binding to an Fc receptor when one or more linkers are bound to the antibody construct at the sites described herein. In certain embodiments, an antibody construct bound by a linker, or bound to a linker bound to a compound or salt of any of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), or (IIIC), or an antibody construct bound by a compound-linker of formulae (IVA), (IVB), or (IVC), retains the ability of the Fc domain of the antibody to bind to an Fc receptor. In certain embodiments, when a linker is attached to the antibody construct at a site described herein, the antibody construct bound to the linker, or the antibody construct bound by the linker bound to the compound or salt of any of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), or (IIIC), or the antigen-binding domain of the antibody construct bound by the compound-linker of formulae (IVA), (IVB), or (IVC), is capable of binding its antigen. In certain embodiments, when a linker is attached to the antibody construct at a site described herein, the antibody construct bound to the linker, or the target binding domain of the antibody construct bound to the linker bound to the compound or salt of any of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC), is capable of binding its antigen.

In certain embodiments, a compound or compound-linker of any of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC) disclosed herein is linked to an antibody Fc region or domain at an engineered cysteine residue. In some embodiments, the engineered cysteine residue is at one or more of positions HC S239C, LC V205C, LC a114C, HC a140C, LC K149C, LC S168C, LC S153C, LC a127C, HCT116C and HC S115C, wherein HC refers to the heavy chain, LC refers to the light chain and the numbering of the amino acid residues in the Fc region is according to the EU index as in Kabat. In certain embodiments, a compound or compound-linker of any of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC) disclosed herein may not be linked to an amino acid residue of an IgG Fc domain disclosed herein selected from: 221. 222, 224, 227, 228, 230, 231, 223, 233, 234, 235, 236, 237, 238, 239, 240, 241, 243, 244, 245, 246, 247, 249, 250, 258, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 278, 280, 281, 283, 285, 286, 288, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 302, 305, 313, 317, 318, 320, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335336, 396, 428 or any subset thereof, wherein the numbering of the amino acid residues in the Fc domain is according to the EU index as in Kabat.

Lysine-based bioconjugation

The antibody construct may be conjugated to the linker via lysine-based bioconjugation. The antibody construct may be exchanged into an appropriate buffer at a concentration of about 2mg/mL to about 10mg/mL, for example, phosphate, borate, PBS, Tris-acetate, Tris-glycine, HEPES, MOPS, MES, EPS, HEPPS, histidine or HEPBS. An appropriate number of equivalents of a compound-linker as described herein, such as a compound or salt of formula (IVA), (IVB) or (IVC)Can be added as a solution with stirring. According to benzazepinePhysical Properties of the linker construct, it being possible to use benzazepine-introduction of a co-solvent prior to addition of the linker construct to promote solubility. Depending on the reactivity observed, the reaction may be stirred at room temperature for 2 hours to about 12 hours. The progress of the reaction can be monitored by LC-MS. Once the reaction is deemed complete, the remaining benzazepine can be removed by suitable methodsLinker constructs and antibody constructs-benzazepinesThe conjugate was exchanged into the desired formulation buffer. According to scheme A below, lysine-linked conjugates can be used with antibodies (mAbs) or bispecific antibodies (bsabs) and benzazepinesLinker constructs (e.g. 10 equivalents) start synthesis (conjugate ═ antibody construct-benzazepineConjugate). Monomer content and benzazepineAntibody construct ratio (molar ratio) can be determined by the methods described herein.

Scheme A:

cysteine-based bioconjugation

Antibody constructsConjugation to a linker may be via cysteine-based bioconjugation. The antibody construct can be exchanged into an appropriate buffer, such as phosphate, borate, PBS, Tris-acetate, Tris-glycine, HEPES, MOPS, MES, EPS, HEPPS, histidine or HEPBS, containing an appropriate number of equivalents of a reducing agent (e.g., dithiothreitol or Tris (2-carboxyethyl) phosphine) at a concentration of about 2mg/mL to about 10 mg/mL. The resulting solution may be stirred for an appropriate amount of time and temperature to achieve the desired reduction. The compound-linker described herein, such as a compound or salt of formula (IVA), (IVB) or (IVC), may be added as a solution with stirring. According to benzazepinePhysical Properties of the linker construct, it being possible to add benzazepines-introduction of a co-solvent prior to the linker construct to facilitate solubility. Depending on the reactivity observed, the reaction may be stirred at room temperature for about 1 hour to about 12 hours. The progress of the reaction can be monitored by liquid chromatography-mass spectrometry (LC-MS). Once the reaction is deemed complete, the remaining free benzazepine can be removed by suitable methodsLinker constructs and antibody constructs-benzazepinesThe conjugate was exchanged into the desired formulation buffer. Using the conditions described in scheme B below, antibodies (mAbs) and benzazepines can be usedStarting the synthesis of such cysteine-based conjugates with a linker construct (e.g. 7 equivalents) . Monomer content and drug-antibody ratio can be determined by the methods described herein.

Scheme B:

pH＝8

20％v/v DMSO

pharmaceutical preparation

The compositions, conjugates, and methods described herein can be considered useful as pharmaceutical compositions for administration to a subject in need thereof. The pharmaceutical composition may comprise at least a compound, salt or conjugate as described herein and one or more pharmaceutically acceptable carriers, diluents, excipients, stabilizers, dispersants, suspending agents and/or thickening agents. The composition may comprise a conjugate having the antibody construct and a compound or salt of any of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC) linked via a linker as described herein. The composition may comprise a conjugate having an antibody construct, a target binding domain and a compound or salt of any of formulae (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB) or (IVC) linked via a linker. The composition can comprise any of the conjugates described herein. The antibody construct may be an anti-CD 40 antibody. The conjugates may comprise an anti-CD 40 antibody and a benzazepineThe conjugates may comprise an anti-HER 2 antibody and a benzazepineThe conjugates may comprise an anti-TROP 2 antibody and a benzazepineThe pharmaceutical composition may comprise at least a compound, salt or conjugate as described herein and a buffer, antibiotic, steroid, carbohydrateOne or more of a compound, a drug (e.g., a chemotherapeutic agent), radiation, a polypeptide, a chelating agent, an adjuvant, and/or a preservative.

Pharmaceutical compositions may be formulated using one or more physiologically acceptable carriers, including excipients and auxiliaries. The formulation may be modified according to the chosen route of administration. Pharmaceutical compositions comprising a compound, salt or conjugate as described herein can be manufactured, for example, by lyophilizing the compound, salt or conjugate, mixing, dissolving, emulsifying, encapsulating or embedding the conjugate. The pharmaceutical composition may also include a compound, salt, or conjugate described herein in free base form or in pharmaceutically acceptable salt form.

The methods for formulating the conjugates described herein can include formulating any of the compounds, salts, or conjugates described herein with one or more inert pharmaceutically acceptable excipients or carriers to form a solid, semi-solid, or liquid composition. Solid compositions may include, for example, powders, tablets, dispersible granules, and capsules, and in some aspects, the solid compositions also contain non-toxic auxiliary substances such as wetting or emulsifying agents, pH buffering agents, and other pharmaceutically acceptable additives. Alternatively, the compounds, salts or conjugates described herein may be lyophilized or in powder form for reconstitution with a suitable vehicle, such as sterile pyrogen-free water, prior to use.

The pharmaceutical compositions described herein may comprise at least one active ingredient (e.g., a compound, salt, or conjugate). The active ingredients can be embedded in microcapsules prepared, for example, by coacervation techniques or by interfacial polymerization (e.g., hydroxymethylcellulose or gelatin microcapsules and poly- (methylmethacylate) microcapsules, respectively), in colloidal drug delivery systems (e.g., liposomes, albumin microspheres, microemulsions, nanoparticles and nanocapsules), or in macroemulsions.

Pharmaceutical compositions as described herein may also typically comprise more than one active compound (such as a compound, salt or conjugate and other agents) as necessary for the particular indication being treated. The active compounds may have complementary activities that do not adversely affect each other. For example, the composition may further comprise a chemotherapeutic agent, cytotoxic agent, cytokine, growth inhibitory agent, anti-hormonal agent, anti-angiogenic agent, and/or cardioprotective agent. Such molecules may be present in combination in amounts effective for the intended purpose.

The compositions and formulations may be sterile. Sterilization may be accomplished by filtration through sterile filtration.

The compositions described herein may be formulated for administration as an injection. Non-limiting examples of formulations for injection may include sterile suspensions, solutions, or emulsions in oily or aqueous vehicles. Suitable oily vehicles may include, but are not limited to, lipophilic solvents or vehicles such as fatty oils or synthetic fatty acid esters, or liposomes. Aqueous injection suspensions may contain substances that increase the viscosity of the suspension. The suspension may also contain suitable stabilizers. Injections can be formulated as a bolus injection or as a continuous infusion. Alternatively, the compositions described herein may be lyophilized or in powder form for reconstitution with a suitable vehicle, such as sterile pyrogen-free water, prior to use.

For parenteral administration, the compounds, salts or conjugates can be formulated in unit dose injectable forms (e.g., using letter solutions, suspensions, emulsions) in combination with a pharmaceutically acceptable parenteral vehicle. Such vehicles may be non-toxic per se and non-therapeutic. The vehicle may be water, saline, ringer's solution, dextrose solution, and 5% human serum albumin. Non-aqueous vehicles such as fixed oils and ethyl oleate may also be used. Liposomes can be used as carriers. The vehicle may contain minor amounts of additives such as substances that enhance isotonicity and chemical stability (e.g., buffers and preservatives).

Sustained release formulations may also be prepared. Examples of sustained-release preparations may include semipermeable matrices of solid hydrophobic polymers which may contain the compound, salt or conjugate, and these matrices may be in the form of shaped articles, e.g., films, or microcapsules. Examples of sustained release matrices may include polyesters, hydrogels (e.g., poly (2-hydroxyethyl-methacrylate), or poly (vinyl alcohol)), polylactide, copolymers of L-glutamic acid and gamma ethyl-L-glutamic acid, non-degradable matricesDegradable ethylene-vinyl acetate, degradable lactic acid-glycolic acid copolymer such as LUPRON DEPOTM(i.e., injectable microspheres composed of lactic acid-glycolic acid copolymer and leuprolide acetate) and poly-D- (-) -3-hydroxybutyric acid.

The pharmaceutical formulations described herein may be prepared for storage by mixing the compound, salt or conjugate with a pharmaceutically acceptable carrier, excipient and/or stabilizer. The formulation may be a lyophilized formulation or an aqueous solution. Acceptable carriers, excipients, and/or stabilizers may not be toxic to recipients at the dosages and concentrations employed. Acceptable carriers, excipients, and/or stabilizers may include buffers such as phosphates, citrates, and other organic acids; antioxidants, including ascorbic acid and methionine; preservatives, polypeptides; proteins, such as serum albumin or gelatin; a hydrophilic polymer; an amino acid; monosaccharides, disaccharides, and other carbohydrates including glucose, mannose, or dextrins; chelating agents, such as EDTA; sugars, such as sucrose, mannitol, trehalose, or sorbitol; salt-forming counterions, such as sodium; a metal complex; and/or a nonionic surfactant or polyethylene glycol.

The pharmaceutical formulation of the conjugates described herein can have an average drug-antibody construct ratio ("DAR") selected from about 1 to about 10, wherein the drug is a compound or salt of any one of formulas (IA), (IB), (IC), (IIA), (IIB), (IIC), (IIIA), (IIIB), (IIIC), (IVA), (IVB), or (IVC). In certain embodiments, the average DAR of the formulation is from about 2 to about 8, such as from about 3 to about 7. In certain embodiments, the average DAR of the pharmaceutical formulation is about 3, about 3.5, about 4, about 4.5, about 5, about 5.5, about 6, or about 6.6.

Therapeutic applications

The compositions, conjugates, and methods of the present disclosure can be used in a number of different subjects, including, but not limited to, mammals, humans, non-human mammals, domesticated animals (e.g., laboratory animals, domesticated pets, or livestock), non-domesticated animals (e.g., wild animals), dogs, cats, rodents, mice, hamsters, cattle, birds, chickens, fish, pigs, horses, goats, sheep, rabbits, and any combination thereof.

The compositions, conjugates, and methods described herein can be used as therapeutic agents, e.g., therapeutic agents that can be administered to a subject in need thereof. The therapeutic effect of the present disclosure may be achieved in a subject by reducing, inhibiting, alleviating, or eradicating a disease state, including but not limited to its symptoms. A therapeutic effect in a subject having a disease or condition, or susceptible to or beginning to have a disease or condition, can be achieved by reducing, inhibiting, preventing, ameliorating, or eradicating the condition or disease or pre-condition or pre-disease state.

In practicing the methods described herein, therapeutically effective amounts of the compositions and conjugates described herein can be administered to a subject in need thereof, typically for the treatment and/or prevention of the condition or its progression. The pharmaceutical composition may affect the physiology of the subject, such as the immune system, inflammatory responses, or other physiological effects. The therapeutically effective amount may vary depending on the severity of the disease, the age and relative health of the subject, the potency of the compound used, and other factors.

Treatment (treating) and/or treatment (treating) may refer to any sign of success in treating or ameliorating a disease or condition. Treatment may include, for example, lessening, delaying, or alleviating the severity of one or more symptoms of a disease or condition, or may include reducing the frequency of disease symptoms, deficiencies, disorders, or adverse conditions, etc., experienced by a patient. Treatment may be used herein to guide methods that result in some degree of treatment or amelioration of a disease or condition, and a range of outcomes for this purpose may be considered, including but not limited to complete prevention of the condition.

Prevention (prevention), and the like, can refer to preventing a disease or condition, such as tumor formation, in a patient. For example, if an individual at risk of having a tumor or other form of cancer is treated with the methods of the present disclosure and does not subsequently suffer from a tumor or other form of cancer, then the disease has been prevented in that individual for at least some period of time. Prevention may also refer to preventing the recurrence of a disease or condition in a patient who has been previously treated for the disease or condition, such as by preventing relapse.

A therapeutically effective amount may be an amount of the composition or an active component thereof sufficient to provide a beneficial effect or otherwise reduce deleterious non-beneficial events to an individual to whom the composition is administered. A therapeutically effective dose can be a dose that is administered to produce one or more desired or desirable (e.g., beneficial) effects, such administration occurring one or more times over a given period of time. The precise dosage may depend on the therapeutic purpose and may be determined by one skilled in the art using known techniques.

The conjugates described herein that are useful in therapy may be formulated and dosed in a manner consistent with good medical practice, taking into account the disease or condition to be treated, the condition of the individual patient, the site of delivery of the composition, the method of administration, and other factors known to practitioners. The compositions described herein may be prepared according to the preparation descriptions described herein.

The pharmaceutical compositions can be used in the methods described herein, and can be administered to a subject in need thereof using techniques known to those of ordinary skill in the art that are suitable for use as therapies for diseases or conditions affecting the subject. One of ordinary skill in the art will appreciate that the amount, duration, and frequency of administration of the pharmaceutical compositions described herein to a subject in need thereof depends on several factors including, for example, but not limited to, the health status of the subject, the particular disease or condition of the patient, the grade or level of the particular disease or condition of the patient, additional therapeutic agents being or having been administered by the subject, and the like.

The methods and compositions described herein can be used for administration to a subject in need thereof. In general, administration of the compositions described herein may include routes of administration, non-limiting examples of which include intravenous, intra-arterial, subcutaneous, subdural, intramuscular, intracranial, intrasternal, intratumoral, or intraperitoneal. In addition, the pharmaceutical composition may be administered to a subject by an additional route of administration, for example, by inhalation, oral, transdermal, intranasal, or intrathecal administration.

The compositions and conjugates of the present disclosure can be administered to a subject in need thereof in a first administration and one or more additional administrations. The one or more additional administrations can be administered to the subject in need thereof minutes, hours, days, weeks, or months after the first administration. Any of the additional administrations may be administered to a subject in need thereof less than 21 days, or less than 14 days, less than 10 days, less than 7 days, less than 4 days, or less than 1 day after the first administration. The one or more administrations may occur more than once per day, more than once per week or more than once per month. Administration may be weekly, biweekly (every other week), every three weeks, monthly or every two months.

The compositions, conjugates, and methods provided herein can be used to treat a variety of diseases, conditions, prevent a disease or condition in a subject, or other therapeutic applications in a subject in need thereof. The compositions, conjugates, and methods provided herein are generally useful for treating proliferative conditions, including but not limited to neoplasms, cancers, tumors, and the like. The compositions, conjugates, and methods provided herein are useful for specifically targeting TLR 8. In one embodiment, the compounds of the present disclosure act as TLR8 agonists and activate an immune response. In another embodiment, the conjugates of the present disclosure act as TLR8 agonists and activate an immune response. A condition such as cancer may be associated with the expression of molecules on cancer cells. Typically, the molecule expressed by the cancer cell may comprise an extracellular portion capable of being recognized by the antibody construct of the conjugate. The molecule expressed by the cancer cell may be a tumor antigen. The antibody construct portion of the conjugate can recognize a tumor antigen. The tumor antigen may include CD5, CD19, CD20, CD25, CD37, CD30, CD33, CD40, CD45, CAMPATH-1, BCMA, CS-1, PD-L1, B7-H3, B7-DC, HLD-DR, carcinoembryonic antigen (CEA), TAG-72, EpCAM, MUC1, folate binding protein, A33, G250, prostate specific membrane antigen (PMSA), ferritin, GD2, GD3, GM2, Le 2yCA-125, CA19-9, epidermal growth factor, p185HER2, IL-2 receptor, EGFRvIII (de2-7 EGFR), fibroblast activation protein, tenascin, metalloprotease, endosialin, vascular endothelial growth factor, avB3, WT1, LMP2, HPV E6, HPVE7, HER-2/neu, MAGE A3, p53 non-mutant, NY-ESO-1, MelanA/MART1, Ras mutant, gp100, p53 mutant, PR1, bcr-abl, tyrosinase, survivin, PSA, hTERT, sarcoma translocation breakpoint protein, EphA2, PAP, ML IA-2P, AFP, ERG, NA17, PAX3, ALK, androgen receptor, cyclin B1, polysialic acid, MYCN, RhoC, TRP-2, fucosyl GM1, Mesothelin (MSLN), PSCA, MAGE A1, sLe (animals), CYP1B1, PLAV1, GM3, BORIS, Tn, Globoh, ETV6-AML, NY-BR-1, RGS5, SART3, STn, carbonic anhydrase IX, PAX5, OY-TES1, protamine 17, LCK, HMWMAA, AKAP-4, SSX2, XAGE 1, legumain, Tie 3, VEGFR2, MAD-CT-1, PDGFR-B, MAD-CT-2, ROR2, TRAIL1, MUGE A36 16, MAGE 4, GAC 2, VEGFR2, CLDTN 2, PGN 2, TFS 2, TFSC 2, TFS 36363672, TFS 2, TFS 36363636363672, TFS 2, TFS 3636363636363672, TFS.

As described herein, the antigen binding domain portion of the conjugate can be configured to recognize a molecule expressed by a cancer cell, such as, for example, a disease antigen, a tumor antigen, or a cancer antigen. Such antigens are generally known to those of ordinary skill in the art, or are newly discovered to be associated with, generally associated with and/or specific for, such conditions. For example, a disease antigen, tumor antigen, or cancer antigen is, but is not limited to, CD5, CD19, CD20, CD25, CD37, CD30, CD33, CD40, CD45, CAMPATH-1, BCMA, CS-1, PD-L1, B7-H3, B7-DC, HLD-DR, carcinoembryonic antigen (CEA), TAG-72, EpCAM, MUC1, folate-binding protein, A33, G250, prostate-specific membrane antigen (PSMA), ferritin, GD2, GD3, GM2, LeyCA-125, CA19-9, epidermal growth factor, p185HER2, IL-2 receptor, EGFRVIIII (de2-7 EGFR), fibroblast activation protein, tenascin, metalloprotease, endosialin, vascular endothelial growth factor, avB3, WT1, LMP2, HPV E6, HPV E7, HER-2/neu, MAGE A3, p53 non-mutant, NY-ESO-1, MelanA/MART1, Ras mutant, gp100, p53 mutant, PR1, bcr-abl, tyrosinase, survivin, sialic acid, hTERT, sarcoma translocation breakpoint protein, EphA2, PAP, ML-IAP, AFP, ERG, NA17, PAX3, ALK, androgen receptor, cyclin B5, polyfucon, CN, RhoC, TRP-2, GM-23, mesothelin 1, GM 24, GM sLe, GM 599, GM1, GM 9, GM 598, GM-9, GM-A, and GM-Ab,Tn, GloboH, ETV6-AML, NY-BR-1, RGS5, SART3, STn, carbonic anhydrase IX, PAX5, OY-TES1, sperm protein 17, LCK, HMWMAA, AKAP-4, SSX2, XAGE 1, legumain, Tie 3, VEGFR2, MAD-CT-1, PDGFR-B, MAD-CT-2, ROR2, TRAIL1, MUC1, MAGE A1, MAGE C1, GAGE, EGFR, CMET, HER 1, MUC1, CA1, NAPI 21, TROP 1, CLDN18.2, CLorf, RON 186, LY 1, FRA, DLL 1, PTK 1, STK 36RA 1, PRSS 1, CLDN1, VTTMCLDN 1, CLDN1, UPV 1, or FOROV 1, or FOROR 1 related antigens. In addition, such tumor antigens may be derived from specific conditions and/or families of conditions including, but not limited to, cancers such as brain cancer, skin cancer, lymphoma, sarcoma, lung cancer, liver cancer, leukemia, uterine cancer, breast cancer, ovarian cancer, cervical cancer, bladder cancer, kidney cancer, hemangioma, bone cancer, hematologic cancer, testicular cancer, prostate cancer, stomach cancer, bowel cancer, pancreatic cancer and other types of cancers as well as precancerous conditions such as hyperplasia and the like.

Non-limiting examples of cancer may include Acute Lymphoblastic Leukemia (ALL); acute myeloid leukemia; adrenocortical carcinoma; cerebellar or brain astrocytoma in children; basal cell carcinoma; bladder cancer; bone tumors, osteosarcomas/malignant fibrous histiocytomas; brain cancer; brain tumors, such as cerebellar astrocytoma, glioblastoma, ependymoma, medulloblastoma, visual pathway and hypothalamic glioma; brain stem glioma; breast cancer; bronchial adenoma/carcinoid; burkitt's lymphoma; cerebellar astrocytoma; cervical cancer; bile duct cancer; chondrosarcoma; chronic lymphocytic leukemia; chronic myelogenous leukemia; a chronic myeloproliferative disorder; colon cancer; cutaneous T cell lymphoma; endometrial cancer; ependymoma; esophageal cancer; eye cancers, such as intraocular melanoma and retinoblastoma; gallbladder cancer; glioma; hairy cell leukemia; head and neck cancer; heart cancer; hepatocellular (liver) cancer; hodgkin lymphoma; hypopharyngeal carcinoma; pancreatic islet cell carcinoma (endocrine pancreas); kaposi's sarcoma; kidney cancer (renal cell carcinoma); laryngeal cancer; leukemias, such as acute lymphocytic, acute myelogenous, chronic lymphocytic, chronic myelogenous, and hairy cell; lip and oral cancer; liposarcoma; lung cancer, such as non-small cells and small cells; shower nozzleLymphoma, such as aids-associated lymphoma, burkitt's lymphoma; lymphomas, cutaneous T-cells, hodgkins and non-hodgkins, macroglobulinemia, malignant fibrous histiocytomas of bones/osteosarcomas; melanoma; merkel (Merkel) cell carcinoma; mesothelioma; multiple myeloma/plasma cell neoplasm; mycosis fungoides; myelodysplastic syndrome; myelodysplastic/myeloproliferative disorders; a chronic myeloproliferative disorder; nasal and sinus cancer; nasopharyngeal carcinoma; neuroblastoma; oligodendroglioma; oropharyngeal cancer; osteosarcoma/malignant fibrous histiocytoma of bone; ovarian cancer; pancreatic cancer; parathyroid cancer; throat cancer; pheochromocytoma; pituitary adenoma; plasmacytoma formation; pleuropulmonary blastoma; prostate cancer; rectal cancer; renal cell carcinoma (renal cancer); renal pelvis and ureter, transitional cell carcinoma; rhabdomyosarcoma; salivary gland cancer; ewing for tumor family sarcomas; kaposi's sarcoma; soft tissue sarcoma; uterine sarcoma; sezary syndrome; skin cancer (non-melanoma); skin cancer; small bowel cancer; soft tissue sarcoma; squamous cell carcinoma; squamous neck cancer with occult primary, metastatic; gastric cancer; testicular cancer; laryngeal cancer; thymoma and thymus carcinoma; thymoma; thyroid cancer; thyroid cancer in childhood; uterine cancer; vaginal cancer; waldenstrom's macroglobulinemiamacrogolulinemia); wilms tumor (Wilms tumor) and any combination thereof.

The present invention provides any of the therapeutic compounds or conjugates disclosed herein for use in a method of treatment of the human or animal body by therapy. Therapy may be by any of the mechanisms disclosed herein, such as by stimulating the immune system. The present invention provides any of the therapeutic compounds or conjugates disclosed herein for use in stimulating the immune system, vaccination, or immunotherapy, including, for example, enhancing an immune response. The invention also provides any of the therapeutic compounds or conjugates disclosed herein for use in preventing or treating any of the conditions disclosed herein, for example cancer, autoimmune disease, inflammation, sepsis, allergy, asthma, transplant rejection, graft versus host disease, immunodeficiency, or infectious disease (typically caused by an infectious pathogen). The invention also provides any of the therapeutic compounds or conjugates disclosed herein for use in obtaining any of the clinical results disclosed herein (e.g., reduction of tumor cells in vivo) for any of the conditions disclosed herein. The invention also provides the use of any of the therapeutic compounds or conjugates disclosed herein in the manufacture of a medicament for the prevention or treatment of any of the conditions disclosed herein.

General synthetic schemes and examples

The following synthetic schemes are provided for purposes of illustration and not limitation. The following examples illustrate various methods of preparing the compounds described herein. It is understood that these compounds can be prepared by similar methods by one skilled in the art or by combining other methods known to one skilled in the art. It will also be appreciated that one skilled in the art will be able to prepare them in a similar manner as described below by using the appropriate starting materials and modifying the synthetic route as required. In general, starting materials and reagents are available from commercial suppliers, or synthesized according to sources known to those skilled in the art or prepared as described herein.

Scheme 1

Synthesis of C-8 formamide

Reaction of aldehyde (i) with a suitable Wittig reagent such as tert-butyl 3-cyano-2- (triphenylphosphorylidene) propionate at elevated temperature to give alkene (ii) which is subjected to reductive cyclization by treatment of alkene (ii) with a reducing agent such as iron powder in hot acetic acid to give the aza-cyclo(iii) In that respect Deprotection of the C-4 ester group by use of a strong acid such as HCl affords compound (iv), which is then coupled with a substituted amine using a coupling agent such as BOP reagent. The 2-amino substituent of compound (v) is protected with a tert-butoxycarbonyl group. The resulting compound (vi) is hydrolyzed with a reagent such as LiOH in a mixture of THF and methanol to give compound (vii).(vii) converting the C-8 carboxylic acid of (vii) to an amide group using known reagents such as HBTU and tertiary amine bases. Acid-mediated deprotection of compound (viii) using reagents such as TFA in dichloromethane provides the target compound (ix).

Scheme 2

Alternative synthesis of C-8 carboxamides

Under standard conditions for the carbonylation of aryl halides, reacting (i) a catalyst such as carbon monoxide, palladium such as Pd (OAc)2And a ligand such as 4, 5-bis (diphenylphosphino) -9, 9-dimethylxanthene (xanthphos) and a base such as potassium phosphate in a mixture of THF and water to provide the carboxylic acid (ii). The conversion to the final product can then be carried out in a similar manner to that described in scheme 1(vii → ix).

Scheme 3

Synthesis of C-8 amine analogs

Reacting aldehyde (i) with a suitable Wittig reagent such as ethyl 3-cyano-2- (triphenylphosphorylidene) propionate at ambient temperature to give alkene (ii), which is subjected to reductive cyclization by treating alkene (ii) with a reducing agent such as iron powder in hot acetic acid to give the aza-compound(iii) In that respect Protection of the C-2 amine group by using Boc anhydride gives compound (iii), which is then saponified with an alkali metal hydroxide such as LiOH to give a carboxylic acid, which is coupled with a substituted amine using a coupling agent such as BOP reagent to give compound (iv). (vi) converting the C-8 carboxylic acid of (v) to an amide group using known reagents such as EDCI/HOBT and tertiary amine bases. Halogen-amine exchange can be achieved using standard methods, such as copper-mediated or palladium catalyzed coupling (benzophenone imine/pd (ii)) to provide C-8 aniline (vi). Functionalization of amine (vi) by acylation or sulfonylation provides aniline (X ═ C) or sulfonamide (X ═ SO) functionalizationCompound (vii). Alternatively, compound (vii) may be prepared directly by palladium mediated coupling of bromide (v) and an appropriately substituted amide or sulfonamide. Acid-mediated deprotection of compound (vii) using reagents such as TFA in dichloromethane provides the target compound (viii).

Scheme 4

Synthesis of C-8 sulfur analogs

In a palladium catalyst such as Pd2(dba)3And a ligand such as XantPhos at elevated temperature to give the C-8 sulfide (ii). Oxidative chlorination of sulfide (ii) with a reagent such as 1, 3-dichloro-5, 5-dimethylhydantoin (DCDMH) gives an intermediate sulfonyl chloride which can be reacted with the structure R' "NH2To give the sulfonamide (iii). Acid mediated deprotection of compound (iii) using reagents such as TFA in dichloromethane provides the target compound (iv).

Scheme 5

Linker-payload synthesis

Linker-payloads (LPs) can be synthesized by various methods. For example, LP compounds can be synthesized as shown in scheme 5-1.

Scheme 5-1:

PEGylated carboxylic acid (i), which has been activated by amide bond formation, can be reacted with an appropriately substituted amine-containing immunostimulatory compound to give an intermediate amide. Formation of the activated ester (ii) may be achieved by reacting the carboxylic acid containing the intermediate amide with a reagent such as N-hydroxysuccinimide or pentafluorophenol in the presence of a coupling agent such as Diisopropylcarbodiimide (DIC) to provide compound (ii).

LP can be synthesized as shown in scheme 5-2.

Scheme 5-2:

activated carbonates such as (i) can be reacted with appropriately substituted amine-containing immunostimulatory compounds to give carbamates (ii) which can be based on R using standard methods3The nature of the ester group is deprotected. The resulting carboxylic acid (iii) can then be coupled with an activating agent such as N-hydroxysuccinimide or pentafluorophenol to provide compound (iv).

LP compounds can be synthesized as shown in scheme 5-3.

Scheme 5-3:

an activated carboxylic acid ester such as (i-a) can be reacted with an appropriately substituted amine-containing immunomodulatory stimulating compound to provide amide (ii). Alternatively, carboxylic acids of type (i-b) may be coupled with appropriately substituted amines containing immunostimulatory compounds in the presence of an amide bond forming agent such as Dicyclohexylcarbodiimide (DCC) to provide the desired LP.

LP compounds can be synthesized by various methods, as shown in schemes 5-4.

Schemes 5-4:

activated carbonates such as (i) can be reacted with appropriately substituted amine-containing immunomodulatory stimulating compounds to give carbamates (ii) as target ISCs.

LP compounds can also be synthesized as shown in schemes 5-5.

Scheme 5-5:

an activated carboxylic acid such as (i-a, i-b, i-c) can be reacted with an appropriately substituted amine-containing immunostimulatory compound to yield an amide (ii-a, ii-b, ii-c) as the target Linker Payload (LP).

Example 1

2-amino-N4,N4-dipropyl-N8- (1,2,3, 4-tetrahydroquinolin-7-yl) -3H-benzo [ b]Aza derivativesSynthesis of (E) -4, 8-dicarboxamide TFA salt (Compound 1.1)

Step A: preparation of Int 1.1a

Bromoacetonitrile (8.60g,71.7mmol,4.78mL) was added to a solution of tert-butyl (triphenylphosphorylidene) acetate (45.0g,119mmol,1.00 eq.) in EtOAc (260mL) at 25 ℃. The reaction was heated at 80 ℃ for 16h, followed by TLC (DCM: MeOH ═ 10: 1; Rf0.4) and LCMS showed reaction complete. The mixture was cooled, filtered, washed with EtOAc (200mL) and concentrated to give crude Int 1.1a as a red solid, which was used directly without purification.

And B: preparation of Int 1.1b

A solution of Int 1.1a (11.4g,54.4mmol,1.00 eq) and methyl 4-formyl-3-nitrobenzoate (24.8g,59.8mmol,1.10 eq) in toluene (200mL) was stirred at 25 ℃ for 18 h. TLC (petroleum ether: EtOAc ═ 1:2) showed the reaction was complete and the mixture was concentrated to give the crude product, which was purified by silica gel chromatography (petroleum ether: EtOAc ═ 10:1 to 8:1 to 4:1) to give Int 1.1b (11.3g) as a yellow solid.1H NMR(CDCl3)δ8.86(d,J＝1.3Hz,1H),8.40(dd,J＝7.9,1.3Hz,1H),8.11(s,1H),7.54(d,J＝7.9Hz,1H),3.97-4.05(m,3H),3.27(s,2H),1.60ppm(s,9H)。

And C: preparation of Int 1.1c

Iron powder (6.79g,122mmol) was added to a solution of Int 1.1b (23.4g,20.3mmol,1.00 eq) in glacial acetic acid (230mL) at 60 ℃. The mixture was stirred at 85 ℃ for 3 h. TLC (Petroleum ether: EtOAc ═ 1: 2; Rf0.43) showed the reaction was complete, the mixture was cooled, filtered, washed with acetic acid (100mL × 2) and concentrated. The crude residue was diluted with EtOAc (100mL) and NaHCO3Washed with aqueous solution (50 mL. times.3) and Na2SO4Dried, filtered and concentrated. The residue was purified by silica gel chromatography to give 15.9g Int 1.1c as a yellow solid.1H NMR(CDCl3)δ7.95(s,1H),7.76(dd,J＝8.2,1.5Hz,1H),7.70(s,1H),7.46(d,J＝8.2Hz,1H),3.93(s,3H),2.99(s,2H),1.56(s,9H)。

Step D: preparation of Int 1.1d

A solution of Int 1.1c (8.00g,25.3mmol) in HCl/dioxane (160mL) was stirred at 25 ℃ for 16h, after which LCMS showed the reaction was complete. The mixture was concentrated to give 12.5g Int 1.1d as a pale yellow solid, which was used directly without purification.1H NMR(DMSO-d6)δ13.43(br s,1H),13.00(br s,1H),10.20(s,1H),9.22(s,1H),7.96(s,1H),7.85-7.92(m,2H),7.78-7.83(m,1H),3.90(s,3H),3.52(s,2H)。

Step E: preparation of Int 1.1e

5.0g (13.3mmol) of HBTU and 7.7mL (44.4mmol) of DIPEA are added at 0 ℃ to a solution containing 3.3g (11.1mmol) of Int 1.1d in 60mL of DMF. After 5min, 2.2g (21.7mmol) of di-n-propylamine were added and the reaction was stirred to room temperature overnight. Using the reactants20mL of saturated NH4Cl, then quenched with 20mL of water. The mixture was extracted with EtOAc (3x30mL) and the combined organic extracts were washed with brine (2x) and then over Na2SO4And (5) drying. After removal of the drying agent and concentration of the EtOAc solution, the residue was purified on silica gel (80g column; 0% to 20% methanol/DCM) to give 3.0g of Int 1.1 e.1H NMR(CDCl3)δ7.92(d,J＝1.5Hz,1H),7.86(dd,J＝8.2,1.5Hz,1H),7.38(d,J＝8.2Hz,1H),6.89(s,1H),3.92(s,3H),3.39(t,J＝7.5Hz,4H),3.22(s,2H),1.68(m,4H),0.91(bs,6H)。ESI,m/z 343[M+H]。

Step F: preparation of Int 1.1f

A solution containing 1.8g (5.3mmol) Int 1.1e in 30mL dichloromethane was cooled to 0 deg.C with 2.2mL (7.9mmol) of TEA and then 1.7g (7.9mmol) of Boc2And (4) O treatment. The reaction mixture was stirred to room temperature overnight and then quenched with 10mL of water. The layers were separated and the aqueous layer was back-extracted with dichloromethane (3X30 mL). The combined organic extracts were washed with brine and over Na2SO4And (5) drying. The solvent was removed and the residue was purified by silica gel chromatography (80g column; 0% to 75% EtOAc/hexanes) to afford Int 1.1f as a white solid.

Step G: preparation of Int 1.1g

A solution containing 500mg (1.13mmol) Int 1.1f in 10mL of a mixture of 1:1THF and water was cooled to 0 deg.C and treated with 1.7mL (1.7mmol) of 1N LiOH. After stirring for 16h, borneol was added followed by sufficient 5% citric acid solution to produce a precipitate (pH-5.5). The resulting mixture was washed three times with EtOAc, the combined organic extracts were washed with brine and over Na2SO4And (5) drying. Evaporation of the solution gave 419mg of Int 1.1g as a pale yellow solid, which was used without purification.

Step H: preparation of Compound 1.1

46mg (0.12mmol) of HATU are added to a solution containing 43mg (0.10mmol) of Int 1.1f in 1.0mL of DMF. The reaction mixture was stirred for 5min, then treated with 30mg (0.12mmol) of 7-N-Boc-amino-1, 2,3, 4-tetrahydroquinoline and 0.022mL (0.20mmol) of NMM. The reaction mixture was stirred for 16h, then saturated NH with 5mL4Cl solution and 5mL water. The resulting mixture was extracted three times with EtOAc, and the combined organics were washed with brine, then Na2SO4And (5) drying. After evaporation of the solvent, the crude oil was dissolved in 3mL of DCM and then cooled to 0 ℃. Then, 0.6mL of TFA was added to the mixture. The mixture was stirred for 4h, evaporated and the resulting residue was purified by reverse phase chromatography to give the TFA salt of compound 1.1 as a white solid.1H NMR(CD3OD)δ7.96(s,1H),7.95(s,1H),7.85(d,J＝2.4Hz,1H),7.79(d,J＝8.8Hz,1H),7.38(d,J＝7.5Hz,1H),7.25(d,J＝7.5Hz,1H),7.10(s,1H),3.55(t,J＝7.5Hz,6H),3.33(m,2H),2.90(t,J＝6.6Hz,2H),2.10(m,1H),1.69(m,4H),0.77(bs,6H)。LCMS[M+H]＝460.25。

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