Compounds that activate AMP-activated protein kinase and uses thereof
阅读说明：本技术 活化amp-活化的蛋白激酶的化合物及其用途 (Compounds that activate AMP-activated protein kinase and uses thereof ) 是由 O·桑德斯 于 2019-08-02 设计创作，主要内容包括：本发明涉及药物化合物、组合物和方法,特别地,因为它们涉及治疗和/或预防与活化AMP-活化的蛋白激酶相关的病症,其中所述化合物是本文所述的式(I)的化合物:包括其药学上可接受的盐,和包含这类化合物的药物组合物,以及使用这些化合物治疗适应症的方法,所述适应症包括癌症、糖尿病、缺血性损伤、肥胖、高脂血症和心脏病症。(The present invention relates to pharmaceutical compounds, compositions and methods, in particular, as they relate to the treatment and/or prevention of conditions associated with the activation of AMP-activated protein kinase, wherein the compounds are compounds of formula (I):)
1. A compound of formula (I):
wherein:
R1selected from:
(a) c substituted by one or more groups selected from List X1-C6An alkyl group;
(b) q; and
(c)-L-Q；
R2selected from:
(a)H；
(b) q; and
(c) -L-Q; and is
Q is independently selected at each occurrence and represents a ring selected from phenyl and 5-6 membered heteroaryl containing 1-3 heteroatoms selected from N, O and S as ring members, and each Q is optionally substituted with 1-3 groups selected from List M;
l is C1-C4Alkylene optionally substituted with 1 or 2 groups selected from: halogen, oxo (═ O), -OH, C1-C2Haloalkyl, C1-C2Alkoxy radical, C1-C2Haloalkoxy, CN, COOR7、-OC(＝O)R7And NR8R9；
R3Is H or-C (═ O) -R6；
R4Is H or-C (═ O) -R6；
R6Is H or C optionally substituted by 1-3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy radical, C1-C4Haloalkyl, -NR8R9、-OC(＝O)-R7And COOR7；
R7Independently at each occurrence selected from H and C optionally substituted with up to 3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy and C1-C4A haloalkyl group;
R8and R9Each independently at each occurrence is selected from H and C optionally substituted with 1 or 2 groups selected from List X1-C4An alkyl group;
or R8And R9Together with the nitrogen to which both are attached form a 5-6 membered heterocyclic ring, optionally containing as ring members a further heteroatom selected from N, O and S, and optionally substituted with 1-4 groups selected from: halogen, oxo, C1-C2Alkyl, hydroxy, C1-C2Alkoxy, CN and COOR7；
R10Independently at each occurrence is C optionally substituted with up to 3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy and C1-C4A haloalkyl group;
list X is made up of halogen, CN, -OH, C1-C4Alkoxy radical, C1-C4Haloalkyl, C1-C4Haloalkoxy ═ O, -COOR7、-OC(＝O)R7、-O-COOR10、-SO2R10、-SO2NR8R9O-Q and O-L-Q;
list M is made of halogen, CN, NO2、COOR7、CONR8R9、-SO2R10、-SO2NR8R9、C1-C2Haloalkyl, C1-C2Haloalkoxy, C1-C2Alkoxy and C1-C2An alkyl group;
or a pharmaceutically acceptable salt thereof.
2. The compound of claim 1 or a pharmaceutical thereofA pharmaceutically acceptable salt wherein R1Is C substituted by 1-3 groups selected from List X1-C4An alkyl group.
3. A compound according to claim 1 or claim 2, or a pharmaceutically acceptable salt thereof, wherein R1is-CH2-O-C(＝O)-OR10Wherein R is10Is optionally substituted by C1-C2Alkoxy, COOR7Or C substituted by CN1-C4An alkyl group.
4. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R1Is phenyl, optionally substituted with 1-3 groups selected from list M.
5. A compound according to any one of the preceding claims, or a pharmaceutically acceptable salt thereof, wherein R2Is H.
6. The compound of any one of claims 1-4, or a pharmaceutically acceptable salt thereof, wherein R2Is Q.
7. A compound according to any one of the preceding claims, or a pharmaceutically acceptable salt thereof, wherein R3Is H.
8. A compound according to any one of the preceding claims, or a pharmaceutically acceptable salt thereof, wherein R4Is H.
9. The compound of any one of claims 1-7, or a pharmaceutically acceptable salt thereof, wherein R3And R4Different.
10. A compound according to any one of the preceding claims, or a pharmaceutically acceptable salt thereof, wherein R1Selected from nitrophenyl, halophenyl and of the formula-CH2-OC(＝O)-O-(C1-C4Alkyl) and R2Selected from the group consisting of H, nitrophenyl and halophenyl.
11. The compound of claim 1 selected from
Or a pharmaceutically acceptable salt thereof.
12. A pharmaceutical composition comprising a compound according to any one of the preceding claims in admixture with at least one pharmaceutically acceptable excipient or carrier.
13. The pharmaceutical composition of claim 12, wherein the compound is mixed with at least two pharmaceutically acceptable excipients.
14. The pharmaceutical composition of claim 12 or 13, which is an aqueous pharmaceutical composition for intravenous administration.
15. A method of treating a condition associated with activated AMP-activated protein kinase, the method comprising administering to a subject in need thereof a compound of any one of claims 1-11.
16. A method of treating a condition associated with activated AMP-activated protein kinase, the method comprising administering to a subject in need of such treatment a pharmaceutical composition of any one of claims 12-14.
17. The method of claim 15 or claim 16, wherein the disorder is selected from cancer, diabetes, ischemic injury, obesity, hyperlipidemia, or a cardiac disorder.
18. The method of claim 17, wherein the disorder is selected from the group consisting of leukemia, lymphoma, type 2 diabetes, and obesity.
19. A method of activating AMP-activated protein kinase in a cell, the method comprising contacting the cell with a compound of any one of claims 1-11.
Technical Field
The field of the invention is compounds, pharmaceutical compositions and methods for treating conditions associated with activated AMP-activated protein kinase. The compounds, compositions, and methods are useful for treating certain cancers, cardiac disorders, diabetic disorders, obesity, and other disorders for which activated AMP-activated protein kinase is beneficial.
Background
Acadesine, also known as 5-amino-l-D-ribofuranosyl-1H-imidazole-4-carboxamide, 5-aminoimidazole-4-carboxamide nucleoside, AICA nucleoside and AICAR, is a natural substance with CAS RN 2627-69-2 and having the following formula:
acadesine 5' -monophosphate, also known as an AICA nucleotide or ZMP, has CAS RN 3031-94-5 and is a naturally occurring active metabolite of acadesine. ZMP is widely reported to directly activate AMP-activated protein kinases which have many beneficial effects. Clinical studies in patients undergoing coronary artery bypass graft surgery have demonstrated that treatment with acadesine before and during surgery reduces early cardiac death (cardiac death) and myocardial infarction (see, e.g., D.T. Mangano, Journal American Medical Association 1997, vol.277, pp.325-332). Phase III clinical trials have been conducted with acadesine, indicating that it is safe when administered orally and intravenously. There are issued patents and/or published patent applications relating to the use of acadesine in: preventing tissue damage caused by reduced blood flow (see U.S. patent No.4,912,092, U.S. patent No.5,817,640); treatment of neurodegenerative disorders (see U.S. patent No.5,187,162); prevention of central nervous system injury (see U.S. patent No.5,236,908); treatment of obesity (see WO0193873 Al); treatment of type 2 diabetes (see WO0197816a 1); treatment of disorders associated with insulin resistance (see WO0209726 Al). There are issued patents and/or published patent applications relating to acadesine 5' -monophosphate as a taste-modifying material (see WO9303734Al), an antiobesity agent (see WO0193874Al) and an antidiabetic agent (see WO0197816 Al). The use of acadesine, acadesine 5' -monophosphate or prodrugs thereof for the treatment of leukemias and lymphomas is also described. US2005/0233987, U.S. Pat. No.7,560,435.
Acadesine is known to be an apoptosis inhibitor in some types of cells. Thus, for example, acadesine is known to inhibit glucocorticoid-induced apoptosis in resting thymocytes, acadesine to inhibit apoptosis caused by serum deprivation in fibroblasts overproducing fructose 2, 6-diphosphate, and acadesine is known to induce ceramide-induced apoptosis in primary astrocytes. Therefore, if acadesine has any effect on lymphocyte apoptosis, acadesine is expected to be an inhibitor thereof.
Throughout the literature on acadesine, free nucleosides are usually administered and larger doses are required to achieve efficacy. In most of these studies, acadesine is believed to be rapidly taken up by cells and phosphorylated to the active species, ZMP, by adenosine kinase. Many references also mention the following facts: acadesine is not passively transported but depends on the adenosine nucleoside transporter for cellular penetration. If these presumptions for adenosine kinase and nucleoside transporter are correct, there are two problems with the new generation of the active species ZMP using acadesine. The first problem is that adenosine kinase is not expressed in the same amount in each cell type and new administration of acadesine will produce very different amounts of ZMP in different tissues.
In addition to the problems with acadesine associated with enzymatic conversion to the active species, ZMP, acadesine also has problems caused by the hydrophilic structure of the molecule. AICAR has very low bioavailability when administered orally, since most of the administered compound is excreted as such in the urine. This makes intravenous administration a preferred method. To date, intravenous administration of AICAR has created other problems that have not been considered so far in animal and human testing. When administered intravenously, adenosine has a half-life of about 12 seconds. This property is attributed to the need for tight control of extracellular adenosine levels. Bolus doses of adenosine are very rapidly taken up into the red blood cells and endothelial cells near the site of intravenous administration. It is assumed that the majority of the acadesine administered intravenously is likewise taken up by the erythrocytes and endothelial cells and is rapidly phosphorylated in these cells to the active metabolite ZMP.
Once inside the cell and phosphorylated to ZMP, acadesine is ion-trapped inside the cell. Thus, ZMP delivered into the bloodstream accumulates within red blood cells and endothelial cells until it causes toxicity, rather than reaching other cell types that may require it. Thus, intravenous administration of a large dose of the nucleoside acadesine will result in very little systemic exposure of the active species ZMP and toxic effects in RBCs and endothelial cells.
However, to achieve the desired therapeutic effect, it is typically preferred to deliver the active agent systemically so that it reaches other tissues where its action may be pharmaceutically beneficial, rather than into the first-to-come cells. The present invention provides compounds of formula (I) which, without being bound by theory, are believed to act as prodrugs of ZMPs and they are not rapidly taken up and captured by the cells they first encounter, as AICAR does, but rather can be utilized systemically. It is believed that the compounds of formula (I) are not actively transported into the cell and therefore they do not rapidly enter the cell to which they first access. Once the compound of formula (I) enters the cell, the prodrug moiety is cleaved to generate the active species, ZMP, which is then retained within the cell by ion capture. Thus, the compounds of formula (I) provide greater systemic bioavailability of the active metabolite ZMP than AICAR itself, while also reducing the adverse effects associated with rapid entry into other cells, particularly erythrocytes, which are adversely affected by AICAR when it is administered intravenously. Thus, these compounds of formula (I) are useful for treating conditions treatable with acadesine or ZMP, but require lower doses to be effective. As shown herein, the compounds also show anti-cancer activity. Other features and advantages of the prodrugs of the invention, as well as methods of using them, will be understood in view of the following detailed description.
Disclosure of Invention
The present invention relates to compounds of formula (I), pharmaceutical compositions comprising these compounds, and methods of using these compounds and pharmaceutical compositions.
In one aspect, the present application provides heterocyclic compounds having the structure of formula (I):
wherein
R1Selected from:
(a) c substituted by one or more groups selected from List X1-C6An alkyl group;
(b) q; and
(c)-L-Q；
R2selected from:
(a) c substituted by one or more groups selected from List X1-C6An alkyl group;
(b)Q；
(c) -L-Q; and
(d)H；
q is independently selected at each occurrence and represents a ring selected from phenyl and 5-6 membered heteroaryl containing 1-3 heteroatoms selected from N, O and S as ring members, and each Q is optionally substituted with 1-3 groups selected from List M;
l is C1-C4Alkylene optionally substituted with 1 or 2 groups selected from: halogen, oxo (═ O), -OH, C1-C2Haloalkyl, C1-C2Alkoxy radical, C1-C2Haloalkoxy, CN, COOR7、-OC(＝O)R7And NR8R9；
R3Is H or-C (═ O) -R6；
R4Is H or-C (═ O) -R6；
R6Is H or C optionally substituted by 1-3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy radical, C1-C4Haloalkyl, -NR8R9、-OC(＝O)-R7And COOR7；
R7Independently at each occurrence selected from H and C optionally substituted with up to 3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy and C1-C4A haloalkyl group;
R8and R9Each independently at each occurrence is selected from H and C optionally substituted with 1 or 2 groups selected from List X1-C4An alkyl group;
or R8And R9Together with the nitrogen to which both are attached form a 5-6 membered heterocyclic ring, optionally containing as ring members a further heteroatom selected from N, O and S, and optionally substituted with 1-4 groups selected from: halogen, oxo, C1-C2Alkyl, hydroxy, C1-C2Alkoxy, CN and COOR7；
R10Independently at each occurrence is C optionally substituted with up to 3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy and C1-C4A haloalkyl group;
list X is made up of halogen, CN, -OH, C1-C4Alkoxy radical, C1-C4Haloalkyl, C1-C4Haloalkoxy ═ O, -COOR7、-OC(＝O)R7、-O-COOR10、-SO2R10、-SO2NR8R9O-Q and O-L-Q;
list M is made of halogen, CN, NO2、COOR7、CONR8R9、-SO2R10、-SO2NR8R9、C1-C2Haloalkyl, C1-C2Alkyl halidesOxy radical, C1-C2Alkoxy and C1-C2An alkyl group;
or a pharmaceutically acceptable salt thereof.
Of particular interest are certain compounds of formula (I):
wherein:
R1selected from:
(a) c substituted by one or more groups selected from List X1-C6An alkyl group;
(b) q; and
(c)-L-Q；
R2selected from:
(a)H；
(b) q; and
(c) -L-Q; and is
Q is independently selected at each occurrence and represents a ring selected from phenyl and 5-6 membered heteroaryl containing 1-3 heteroatoms selected from N, O and S as ring members, and each Q is optionally substituted with 1-3 groups selected from List M;
l is C1-C4Alkylene optionally substituted with 1 or 2 groups selected from: halogen, oxo (═ O), -OH, C1-C2Haloalkyl, C1-C2Alkoxy radical, C1-C2Haloalkoxy, CN, COOR7、-OC(＝O)R7And NR8R9；
R3Is H or-C (═ O) -R6；
R4Is H or-C (═ O) -R6；
R6Is H or C optionally substituted by 1-3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy radical, C1-C4Haloalkyl, -NR8R9、-OC(＝O)-R7And COOR7；
R7Independently at each occurrence selected from H and C optionally substituted with up to 3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy and C1-C4A haloalkyl group;
R8and R9Each independently at each occurrence is selected from H and C optionally substituted with 1 or 2 groups selected from List X1-C4An alkyl group;
or R8And R9Together with the nitrogen to which both are attached form a 5-6 membered heterocyclic ring, optionally containing as ring members a further heteroatom selected from N, O and S, and optionally substituted with 1-4 groups selected from: halogen, oxo, C1-C2Alkyl, hydroxy, C1-C2Alkoxy, CN and COOR7；
R10Independently at each occurrence is C optionally substituted with up to 3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy and C1-C4A haloalkyl group;
list X is made up of halogen, CN, -OH, C1-C4Alkoxy radical, C1-C4Haloalkyl, C1-C4Haloalkoxy ═ O, -COOR7、-OC(＝O)R7、-O-COOR10、-SO2R10、-SO2NR8R9O-Q and O-L-Q;
list M is made of halogen, CN, NO2、COOR7、CONR8R9、-SO2R10、-SO2NR8R9、C1-C2Haloalkyl, C1-C2Haloalkoxy, C1-C2Alkoxy and C1-C2An alkyl group;
or a pharmaceutically acceptable salt thereof, and methods of making and using such compounds as pharmaceuticals.
The compounds of formula (I) are useful for activating cells,AMP-activated protein kinase in a tissue or organism, in particular for use in the treatment of conditions in which activated AMP-activated protein kinase is beneficial. As prodrugs of acadesine monophosphate, the compounds of formula (I) exhibit enhanced intracellular efficacy and systematics compared to AICAR or ZMP. Accordingly, the compounds of formula (I) may be used to treat a disorder in which AICAR and/or ZMP are effective. These conditions include ischemic injury, thrombosis, B-cell associated lymphoproliferative disorders, diabetes and insulin resistance, hyperlipidemia and neurodegenerative conditions. In particular, AICAR or ZMP have been reported to be useful in the treatment of acute lymphocytic leukemia, B-cell chronic lymphocytic leukemia (B-CLL), type 2 diabetes, myocardial damage and infarction, other B-cell lymphoproliferative diseases including splenic marginal zone lymphoma, mantle cell lymphoma, follicular lymphoma, lymphoplasmacytic lymphoma and Waldenstrom syndrome (B-CLL)syndrome), and protection against ischemic injury during cardiac surgery. The compounds of formula (I) are useful for treating these and other conditions associated with the activation of AMP-activated protein kinase.
In one aspect, the invention provides compounds of formula (I) and their pharmaceutically acceptable salts as described herein. These compounds are useful in the treatment of the disorders set forth above.
In some embodiments, the compounds described herein are useful in the treatment, particularly in treating the disorders listed above or ameliorating the activation of AMP-activated protein kinase in a subject in need of such treatment.
In another aspect, the present application provides a pharmaceutical composition comprising a compound of formula (I) as described herein, in admixture with at least one pharmaceutically acceptable carrier or excipient.
In another aspect, the application provides methods for treating and/or preventing conditions in which AICAR and/or ZMP are effective, including ischemic injury, thrombosis, B-cell associated lymphoproliferative disease, diabetes and insulin resistance, hyperlipidemia, and neurodegenerative conditions. In particular, the compounds and their pharmaceutical compositions are useful for treating acute lymphoblastic leukemia, B-cell chronic lymphocytic leukemia (B-CLL), type 2 diabetes, myocardial damage and infarction, other B-cell lymphoproliferative diseases including splenic marginal zone lymphoma, mantle cell lymphoma, follicular lymphoma, lymphoplasmacytic lymphoma, and Waldenstrom's syndrome, for providing protection against ischemic injury during cardiac surgery, and for treating other conditions associated with activating AMP-activated protein kinase.
In another aspect, the application provides the use of a compound of formula (I) as described herein for the manufacture of a medicament. In particular, the compounds are useful for the preparation of medicaments for the treatment of the disorders disclosed herein.
In another aspect, the present application provides combinations for treating and/or preventing disorders for which AICAR and/or ZMP have efficacy, including those listed above. The combination comprises a compound of formula (I) as described herein and at least one additional therapeutic agent useful in treating the same individual treated with the compound of formula (I).
In another aspect, the present application provides a method for treating and/or preventing a disorder responsive to the administration of AICAR and/or ZMP in a subject in need of such treatment, the method comprising administering to a subject in need thereof an effective amount of a combination comprising a compound of formula (I) disclosed herein and a second therapeutic agent described herein.
In another aspect, the present application provides methods for providing enhanced activation of AMP-activated protein kinase.
Detailed Description
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, applications, published applications and other publications cited herein are hereby incorporated by reference in their entirety. If a definition given in this section is contrary to or inconsistent with a definition set forth in a patent, application, or other publication incorporated by reference, the definition given in this section prevails over the definition incorporated by reference.
As used herein, "a" or "an" means "at least one" or "one or more".
The term "alkyl" as used herein refers to saturated hydrocarbon groups of straight, branched or cyclic configuration or any combination thereof, with alkyl groups of particular interest including those having 10 or fewer carbon atoms, especially 1-6 carbon atoms, and lower alkyl groups having 1-4 carbon atoms. Exemplary alkyl groups are methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl, pentyl, isopentyl, hexyl, cyclopropylmethyl, and the like.
Alkyl groups may be unsubstituted or they may be substituted to the extent that substitution is chemically meaningful. Typical substituents include, but are not limited to, halogen, ═ O, ═ N-CN, ═ N-ORa、＝NRa、-ORa、-NRa 2、-SRa、-SO2Ra、-SO2NRa 2、-NRaSO2Ra、-NRaCONRa 2、-NRaCOORa、-NRaCORa、-CN、-COORa、-CONRa 2、-OOCRa、-CORaand-NO2Wherein R isaEach independently is H, C1-C4Alkyl radical, C3-C7Heterocyclic group, C1-C5Acyl radical, C2-C6Alkenyl radical, C2-C8Alkynyl, C6-C10Aryl or C5-C10Heteroaryl, and RaEach optionally substituted by halogen, ═ O, ═ N-CN, ═ N-ORb、＝NRb、ORb、NRb 2、SRb、SO2Rb、SO2NRb 2、NRbSO2Rb、NRbCONRb 2、NRbCOORb、NRbCORb、CN、COORb、CONRb 2、OOCRb、CORbAnd NO2Is substituted in which RbEach independently is H, C1-C4Alkyl radical, C3-C7Heterocyclic group, C1-C5Acyl radical, C2-C6Alkenyl radical, C2-C8Alkynyl, C6-C10Aryl or C5-C10A heteroaryl group. If the substituents contain two R on the same atom or on adjacent atomsaOr RbGroup (e.g., -NR)b 2or-NRb-C(O)-Rb) Then the two RaOr RbThe groups may optionally form, together with the atoms in the substituents to which they are attached, a ring having 5-8 ring members, which may be as RaOr RbAre substituted as permitted per se and may contain further heteroatoms (N, O or S) as ring members.
The term "alkenyl" as used herein refers to an alkyl group as defined above having at least two carbon atoms and at least one carbon-carbon double bond. Thus, alkenyl groups of particular interest include straight chain, branched chain, or cyclic alkenyl groups having 2 to 10 carbon atoms (e.g., ethenyl, propenyl, butenyl, pentenyl, etc.), or 5 to 10 atoms for cyclic alkenyl groups. Alkenyl groups are optionally substituted with suitable alkyl substituents as given herein.
Similarly, the term "alkynyl" as used herein refers to an alkyl or alkenyl group as defined above having at least two (preferably three) carbon atoms and at least one carbon-carbon triple bond. Alkynyl groups of particular interest include straight, branched or cyclic alkynes having a total of 2 to 10 carbon atoms (e.g., ethynyl, propynyl, butynyl, cyclopropylethynyl, and the like). Alkynyl groups are optionally substituted with suitable alkyl substituents as given herein.
The term "cycloalkyl" as used herein refers to cyclic alkanes (i.e., wherein the carbon atom chain of the hydrocarbon forms a ring), preferably comprising 3 to 8 carbon atoms. Thus, exemplary cycloalkyl groups include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, and cyclooctyl. Cycloalkyl groups may also include one or two double bonds, which form a "cycloalkenyl group. Cycloalkyl groups are optionally substituted with suitable alkyl substituents as given herein.
The term "aryl" or "aromatic moiety" as used herein refers to an aromatic ring system. Thus, aryl groups of interest include phenyl and naphthyl. In addition, an aryl group of interest may be fused to another 5 or 6 membered heteroaryl, cycloalkyl or heterocyclyl group (i.e., covalently bound to 2 atoms on the first aromatic ring), and thus is referred to as a "fused aryl" or "fused aromatic group.
Aromatic groups containing one or more heteroatoms (typically N, O or S) as ring members may be referred to as heteroaryl or heteroaromatic groups. Typical heteroaromatic groups include monocyclic 5-6 membered aromatic groups such as pyridyl, pyrimidinyl, pyrazinyl, thienyl, furyl, pyrrolyl, pyrazolyl, thiazolyl, oxazolyl, isothiazolyl, isoxazolyl, and imidazolyl, as well as fused bicyclic moieties formed by the condensation of one of these monocyclic groups with a benzene ring or with any heteroaromatic monocyclic group to form 8-10 membered bicyclic groups such as indolyl, benzimidazolyl, indazolyl, benzotriazolyl, isoquinolyl, quinolyl, benzothiazolyl, benzofuryl, pyrazolopyridyl, pyrazolopyrimidinyl, quinazolinyl, quinoxalinyl, cinnolinyl, and the like. Any monocyclic or fused bicyclic ring system having aromatic character in terms of electron distribution in the ring system is included in the present definition. Also included are bicyclic groups in which at least the ring directly attached to the rest of the molecule has aromatic character. Typically, the aromatic ring system contains from 5 to 12 ring member atoms.
The terms "heterocycle" and "heterocyclyl" as used herein, refer to any compound or radical of atoms in which a plurality of atoms form a ring through a plurality of covalent bonds, wherein the ring includes at least one non-carbon atom as a ring member. Rings of particular interest include 5 and 6 membered rings having nitrogen, sulfur or oxygen as non-carbon ring atoms or atoms, such as pyrrolidine, morpholine, piperidine, tetrahydrofuran, piperazine and the like. Typically, these rings contain 0 to 1 oxygen or sulfur atom, at least one and typically 2 to 3 carbon atoms, and up to 2 nitrogen atoms as ring members. A further contemplated heterocyclic ring may be fused to one or two carbocyclic or heterocyclic rings (i.e., covalently bonded to two atoms on the first heterocyclic ring) and is therefore referred to as a "fused heterocyclic ring" or "fused heterocyclyl ring" or "fused heterocyclic moiety" as used herein. If the fused rings are aromatic, they may be referred to herein as 'heteroaryl' or heteroaromatic groups.
The non-aromatic heterocyclic group may be substituted by the substituents given above as being suitable for alkyl, and may also be substituted by C1-C6Alkyl substitution.
Where permitted, aryl and heteroaryl groups may be substituted. Suitable substituents include, but are not limited to, halogen, -ORa、-NRa 2、-SRa、-SO2Ra、-SO2NRa 2、-NRaSO2Ra、-NRaCONRa 2、-NRaCOORa、-NRaCORa、-CN、-COORa、-CONRa 2、-OOCRa、-CORaand-NO2Wherein R isaEach independently is H, C1-C4Alkyl radical, C3-C7Heterocyclic group, C1-C5Acyl radical, C2-C6Alkenyl radical, C2-C8Alkynyl, C6-C10Aryl or C5-C10Heteroaryl, and RaEach optionally substituted by halogen, ═ O, ═ N-CN, ═ N-ORb、＝NRb、ORb、NRb 2、SRb、SO2Rb、SO2NRb 2、NRbSO2Rb、NRbCONRb 2、NRbCOORb、NRbCORb、CN、COORb、CONRb 2、OOCRb、CORbAnd NO2Is substituted in which RbEach independently is H, C1-C4Alkyl radical, C3-C7Heterocyclic group, C1-C5Acyl radical, C2-C6Alkenyl radical, C2-C8Alkynyl, C6-C10Aryl or C5-C10A heteroaryl group. If the substituents contain two R on the same atom or on adjacent atomsaOr RbRadicals (e.g. -NR)b 2or-NRb-C(O)-Rb) Then the two RaOr RbThe groups may optionally form, together with the atoms in the substituents to which they are attached, a ring having 5-8 ring members, which may be as RaOr RbAre substituted as permitted per se and may contain further heteroatoms (N, O or S) as ring members.
The term "alkoxy" as used herein refers to a hydrocarbon group attached through an oxygen atom, such as-O-Hc, where the hydrocarbon moiety Hc may have any number of carbon atoms, typically 1-10 carbon atoms, may further contain double or triple bonds, and may include one or two oxygen, sulfur or nitrogen atoms in the alkyl chain, and may be substituted with any of the groups disclosed herein as substituents for alkyl groups. For example, suitable alkoxy groups include methoxy, ethoxy, propoxy, isopropoxy, methoxyethoxy, benzyloxy, allyloxy, and the like. Similarly, the term "alkylthio" refers to an alkylthio group of the general formula-S-Hc, wherein the hydrocarbon moiety Hc is as described for alkoxy. For example, alkylthio of interest includes methylthio, ethylthio, isopropylthio, methoxyethylthio, benzylthio, allylthio, and the like.
The term 'amino' as used herein refers to the group-NH2。
The term 'acyl' as used herein refers to a group of formula-C (═ O) -D, where D represents an alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl or heterocycle as described above. A typical example is where D is C1-C6Alkyl radical, C2-C6Alkenyl or alkynyl, or phenyl, each of which is optionally substituted. In some embodiments, D may be H, Me, Et, isopropyl, propyl, butylRadicals, optionally substituted by-OH, -OMe or NH2Substituted C1-C4Alkyl, phenyl, halophenyl, alkylphenyl, and the like.
The term "aryloxy" as used herein refers to an aryl group attached to an oxygen atom, wherein the aryl group may be further substituted. For example, suitable aryloxy groups include phenoxy and the like. Similarly, the term "arylthio" as used herein refers to an aryl group attached to a sulfur atom, wherein the aryl group may be further substituted. For example, suitable arylthio groups include phenylthio and the like.
The hydrocarbon moiety of each of alkoxy, alkylthio, alkylamino, aryloxy, and the like may be substituted as appropriate as described for the relevant hydrocarbon moiety.
The term "halogen" as used herein refers to fluorine, chlorine, bromine and iodine. Halogen or halo, if present as a substituent, typically refers to F or Cl or Br, more typically F or Cl.
The term "haloalkyl" refers to an alkyl group as described above wherein one or more hydrogen atoms on the alkyl group have been replaced with a halogen group. Examples of such groups include, but are not limited to, fluoroalkyl groups such as fluoroethyl, trifluoromethyl, difluoromethyl, trifluoroethyl, and the like.
The term "haloalkoxy" refers to the group-O-haloalkyl, including by way of example, trifluoromethoxy and the like.
The term "substituted" as used herein means that a hydrogen atom of an unsubstituted group is replaced with at least one suitable substituent as described herein. Furthermore, the term "substituted" also includes a plurality of degrees of substitution, where a plurality of substituents are disclosed or claimed, a substituted compound may be independently substituted with one or more of the disclosed or claimed substituents.
In addition to the disclosure herein, in certain embodiments, substituted groups have 1, 2, 3, or 4 substituents, 1, 2, or 3 substituents, 1 or 2 substituents, or 1 substituent.
It is to be understood that, among all substituted groups defined above, compounds produced by defining the substituents themselves to have additional substituents (e.g., substituted aryl having substituted aryl as a substituent which is itself substituted with substituted aryl, said substituted aryl being further substituted with substituted aryl, etc.) are not included herein. In this case, the maximum number of such substitutions is three. For example, the series of substitutions of substituted aryl groups of particular interest herein are limited to substituted aryl- (substituted aryl) -substituted aryl groups.
Unless otherwise indicated, the nomenclature of substituents not explicitly defined herein is achieved by naming the terminal portion of the named functional group, then the adjacent functional group toward the point of attachment. For example, the substituent "arylalkoxycarbonyl" refers to the group (aryl) - (alkyl) -O-C (O) -.
For any group disclosed herein that contains one or more substituents, it is, of course, understood that such groups do not contain any substitution or substitution patterns that are sterically impractical or chemically unstable and/or synthetically impractical in an aqueous environment. In addition, unless a particular isomer is disclosed, the subject compounds include all stereochemical isomers resulting from substitution of these compounds. Where nucleoside analogs are disclosed, unless mixtures are indicated, the structures represent the particular enantiomers depicted.
The term "pharmaceutically acceptable salt" means a salt (with a counterion having acceptable mammalian safety for a given dosage regimen) that is acceptable for administration to a patient, e.g., a mammal, particularly a human. Such salts may be derived from pharmaceutically acceptable inorganic or organic bases and pharmaceutically acceptable inorganic or organic acids. "pharmaceutically acceptable salt" refers to pharmaceutically acceptable salts of compounds, many of which are well known in the art. These salts are derived from a variety of organic and inorganic counterions well known in the art, including by way of example only, sodium, potassium, calcium, magnesium, ammonium, tetraalkylammonium, and the like; and when the molecule contains a basic functional group, it is a salt of an organic or inorganic acid, such as hydrochloride, hydrobromide, formate, tartrate, benzenesulfonate, methanesulfonate, acetate, maleate, oxalate, or the like.
The term "salt thereof" refers to a compound formed when a neutral organic compound is protonated or deprotonated to produce an ionic organic moiety associated with an oppositely charged counterion. For example, this may refer to a salt formed when a proton of an acidic organic molecule is replaced by a cation, such as a metal cation or an organic cation. As another example, salts of the compounds of the present invention include those in which the compound is protonated by an inorganic or organic acid to form a cation, with the conjugate base of the inorganic or organic acid as the anionic component of the salt. Where applicable, the salt is a pharmaceutically acceptable salt, although this is not necessary for salts of compounds not intended for administration to a patient, for example precursors of the final pharmaceutical compound or intermediates used in the synthesis of compounds of formula (I).
The compounds and compositions described herein can be administered to an individual in need of treatment for any of the above-mentioned conditions. The individual is typically a mammal diagnosed as in need of treatment for one or more of such disorders, and preferably the individual is a human. The method comprises administering an effective amount of at least one compound of formula (I), optionally in the form of a pharmaceutical composition. Optionally, the compounds can be administered in combination with one or more additional therapeutic agents, particularly useful for treating conditions afflicting a particular individual.
Illustrative embodiments
The embodiments listed below are representative of the invention:
a compound of formula (I):
wherein:
R1selected from:
(a) c substituted by one or more groups selected from List X1-C6An alkyl group;
(b) q; and
(c)-L-Q；
R2selected from:
(a) c substituted by one or more groups selected from List X1-C6An alkyl group;
(b)Q；
(c) -L-Q; and
(d)H；
q is independently selected at each occurrence and represents a ring selected from phenyl and 5-6 membered heteroaryl containing 1-3 heteroatoms selected from N, O and S as ring members, and each Q is optionally substituted with 1-3 groups selected from List M;
l is C1-C4Alkylene optionally substituted with 1 or 2 groups selected from: halogen, oxo (═ O), -OH, C1-C2Haloalkyl, C1-C2Alkoxy radical, C1-C2Haloalkoxy, CN, COOR7、-OC(＝O)R7And NR8R9；
R3Is H or-C (═ O) -R6；
R4Is H or-C (═ O) -R6；
R6Is H or C optionally substituted by 1-3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy radical, C1-C4Haloalkyl, -NR8R9、-OC(＝O)-R7And COOR7；
R7Independently at each occurrence selected from H and C optionally substituted with up to 3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy and C1-C4A haloalkyl group;
R8and R9Each independently at each occurrence is selected from H and C optionally substituted with 1 or 2 groups selected from List X1-C4An alkyl group;
or R8And R9Together with the nitrogen to which they are both attached form a 5-6 membered heterocyclic ring, optionally containing as ring members a further heteroatom selected from N, O and S, and anyOptionally substituted with 1-4 groups selected from: halogen, oxo, C1-C2Alkyl, hydroxy, C1-C2Alkoxy, CN and COOR7；
R10Independently at each occurrence is C optionally substituted with up to 3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy and C1-C4A haloalkyl group;
list X is made up of halogen, CN, -OH, C1-C4Alkoxy radical, C1-C4Haloalkyl, C1-C4Haloalkoxy ═ O, -COOR7、-OC(＝O)R7、-O-COOR10、-SO2R10、-SO2NR8R9O-Q and O-L-Q;
list M is made of halogen, CN, NO2、COOR7、CONR8R9、-SO2R10、-SO2NR8R9、C1-C2Haloalkyl, C1-C2Haloalkoxy, C1-C2Alkoxy and C1-C2An alkyl group;
or a pharmaceutically acceptable salt thereof.
Of particular interest are compounds of formula (I) wherein:
R1selected from:
(a) c substituted by one or more groups selected from List X1-C6An alkyl group;
(b) q; and
(c)-L-Q；
R2selected from:
(a)H；
(b) q; and
(c) -L-Q; and is
Q is independently selected at each occurrence and represents a 5-6 membered heteroaryl group selected from phenyl and containing 1-3 heteroatoms selected from N, O and S as ring members, and each Q is optionally substituted with 1-3 groups selected from List M;
l is C1-C4Alkylene optionally substituted with 1 or 2 groups selected from: halogen, oxo (═ O), -OH, C1-C2Haloalkyl, C1-C2Alkoxy radical, C1-C2Haloalkoxy, CN, COOR7、-OC(＝O)R7And NR8R9；
R3Is H or-C (═ O) -R6；
R4Is H or-C (═ O) -R6；
R6Is H or C optionally substituted by 1-3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy radical, C1-C4Haloalkyl, -NR8R9、-OC(＝O)-R7And COOR7；
R7Independently at each occurrence selected from H and C optionally substituted with up to 3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy and C1-C4A haloalkyl group;
R8and R9Each independently at each occurrence is selected from H and C optionally substituted with 1 or 2 groups selected from List X1-C4An alkyl group;
or R8And R9Together with the nitrogen to which both are attached form a 5-6 membered heterocyclic ring, optionally containing as ring members a further heteroatom selected from N, O and S, and optionally substituted with 1-4 groups selected from: halogen, oxo, C1-C2Alkyl, hydroxy, C1-C2Alkoxy, CN and COOR7；
R10Independently at each occurrence is C optionally substituted with up to 3 groups selected from1-C6Alkyl groups: halogen, CN, hydroxy, C1-C4Alkoxy and C1-C4A haloalkyl group;
list X is made up of halogen, CN, -OH, C1-C4Alkoxy radical, C1-C4Haloalkyl, C1-C4Haloalkoxy ═ O, -COOR7、-OC(＝O)R7、-O-COOR10、-SO2R10、-SO2NR8R9O-Q and O-L-Q;
list M is made of halogen, CN, NO2、COOR7、CONR8R9、-SO2R10、-SO2NR8R9、C1-C2Haloalkyl, C1-C2Haloalkoxy, C1-C2Alkoxy and C1-C2An alkyl group;
or a pharmaceutically acceptable salt thereof.
2. A compound of embodiment 1 or a pharmaceutically acceptable salt thereof, wherein R1Is C substituted by 1-3 groups selected from List X1-C4An alkyl group.
3. A compound of embodiment 1 or embodiment 2, or a pharmaceutically acceptable salt thereof, wherein R1is-CH2-O-C(＝O)-OR10Wherein R is10Is optionally substituted by C1-C2Alkoxy, COOR7Or C substituted by CN1-C4An alkyl group.
4. A compound of embodiment 1 or a pharmaceutically acceptable salt thereof, wherein R1Is phenyl, optionally substituted with 1-3 groups selected from list M. In some of these embodiments, R1Is phenyl, substituted with 1 or 2 groups selected from: halogen, CN, NO2、COOR7、CONR8R9、-SO2R10、-SO2NR8R9And C1-C2A haloalkyl group. In a specific example, R1Selected from chlorophenyl and nitrophenyl.
5. A compound of any one of the above embodiments, or a pharmaceutically acceptable salt thereof, wherein R2Is H.
6. A compound of any one of embodiments 1-4 or a pharmaceutically acceptable salt thereof, wherein R2is-C (═ O) -O-R10Wherein R is10Is optionally substituted by C1-C2Alkoxy, COOR7Or C substituted by CN1-C4An alkyl group.
7. A compound of any one of the above embodiments, or a pharmaceutically acceptable salt thereof, wherein R3Is H.
8. A compound of any one of the above embodiments, or a pharmaceutically acceptable salt thereof, wherein R4Is H.
9. A compound of any one of embodiments 1-7 or a pharmaceutically acceptable salt thereof, wherein R3And R4Different.
10. A compound of embodiment 1 or a pharmaceutically acceptable salt thereof, wherein R1Selected from nitrophenyl, halophenyl and of the formula-CH2-OC(-O)-O-(C1-C4Alkyl) and R2Selected from H, nitrophenyl, halophenyl and of the formula-CH2-OC(-O)-O-(C1-C4Alkyl) groups. In specific embodiments, R1Is p-nitrophenyl or p-chlorophenyl, and R2Is H, p-nitrophenyl or p-chlorophenyl. Optionally, in these embodiments, R3And R4Are all H. Compound SB00039, compound 5 and compound 7 are each preferred embodiments within the scope of embodiment 10.
11. A pharmaceutical composition comprising a compound of any one of the above embodiments in admixture with at least one pharmaceutically acceptable excipient or carrier.
12. The pharmaceutical composition of embodiment 11, wherein the compound is admixed with at least two pharmaceutically acceptable excipients.
13. A method of treating a condition associated with activated AMP-activated protein kinase, the method comprising administering to a subject in need thereof a compound of any one of embodiments 1-9.
14. A method of treating a disorder associated with activated AMP-activated protein kinase, the method comprising administering the pharmaceutical composition of embodiment 11 or embodiment 12.
15. The method of embodiment 13 or embodiment 14, wherein the disorder is selected from cancer, diabetes, ischemic injury, obesity, hyperlipidemia, or a cardiac disorder.
16. The method of embodiment 15, wherein said disorder is selected from the group consisting of leukemia, lymphoma, type 2 diabetes and obesity.
17. A method of activating AMP-activated protein kinase in a cell, the method comprising contacting the cell with a compound of any one of embodiments 1-9.
In some embodiments, the present application provides compound SB00039, compound 5, or compound 7, and pharmaceutically acceptable salts thereof, and methods of treatment and pharmaceutical compositions using these compounds.
Pharmaceutical composition
The compounds of the invention may be prepared as pharmaceutical compositions comprising a compound of formula (I) in admixture with at least one pharmaceutically acceptable carrier or excipient and administered in the form of a pharmaceutical composition. In some embodiments, the pharmaceutical composition comprises at least two pharmaceutically acceptable carrier or excipient ingredients. Suitable carriers include water, optionally buffered, e.g., with phosphate, carbonate, acetate or similar buffers, and possibly at least one solvating component, e.g., a co-solvent or cyclodextrin. Suitable carriers are disclosed in the formulation section below.
In some embodiments, the compound of formula (I) is provided in a form suitable for dissolution or suspension in an acceptable intravenous form, and thus the compound of formula (I) may be combined with one or more carrier or excipient ingredients, and then optionally lyophilized or concentrated to a form that can be readily reconstituted with an aqueous carrier, e.g., saline, phosphate buffered saline, glucose, lactate or lactated ringers, typically at isotonic concentration levels, for intravenous administration, including infusion.
Preparation
Any suitable formulation of the compounds described herein may be prepared. See generally Remington's Pharmaceutical Sciences, (2000) Hoover, J.E. ed, 20 th edition, Lippincott Williams and Wilkins Publishing Company, Easton, Pa., 780-857. The formulation is selected to be suitable for the appropriate route of administration. Where the compound is sufficiently basic or acidic to form a stable, non-toxic acid or base salt, it may be appropriate to administer the compound as a salt. Examples of pharmaceutically acceptable salts are organic acid addition salts with acids forming physiologically acceptable anions, such as tosylate, mesylate, acetate, citrate, malonate, tartrate, succinate, benzoate, ascorbate, alpha-ketoglutarate and alpha-glycerophosphate. Suitable inorganic salts may also be formed, including hydrochlorides, sulfates, nitrates, bicarbonates, and carbonates. Pharmaceutically acceptable salts are obtained using standard procedures well known in the art, for example by reacting a sufficiently basic compound such as an amine with a suitable acid to give a physiologically acceptable anion. Alkali metal salts (e.g., sodium, potassium or lithium) or alkaline earth metal salts (e.g., calcium) of carboxylic acids are also prepared.
When the compound of formula (I) is administered in a pharmacological composition, it is contemplated that the compound may be formulated in admixture with pharmaceutically acceptable excipients and/or carriers. For example, the compound of interest may be administered orally, in the form of a neutral compound or in the form of a pharmaceutically acceptable salt, or intravenously in a physiological saline solution or a similar suitable isotonic solution. Conventional buffers such as phosphate, bicarbonate or citrate may be used for this purpose. Of course, one of ordinary skill in the art can, within the teachings of this specification, modify the formulation to provide a variety of formulations for a particular route of administration. In particular, the compounds of interest may be modified to be more soluble in water or other vehicles, for example, it may be readily accomplished by small modifications (salt formation, esterification, etc.) well known to those of ordinary skill in the art. It is also well known to those of ordinary skill in the art to vary the route of administration and dosage regimen of a particular compound to control the pharmacokinetics of the compounds of the present invention to achieve maximum beneficial effect in a patient.
The compounds of formula I described herein are typically soluble in organic solvents such as chloroform, dichloromethane, ethyl acetate, ethanol, methanol, isopropanol, acetonitrile, glycerol, N-dimethylformamide, N-dimethylacetamide, dimethylsulfoxide, and the like. In one embodiment, the present invention provides a formulation prepared by mixing a compound of formula I with a pharmaceutically acceptable carrier. In one aspect, the formulation may be prepared using a method comprising the steps of: a) dissolving the compound in a water-soluble organic solvent, a non-ionic solvent, a water-soluble lipid, a cyclodextrin, a vitamin such as tocopherol, a fatty acid ester, a phospholipid, or a combination thereof to obtain a solution; and b) adding saline or a buffer containing 1-10% carbohydrate solution. In one example, the carbohydrate comprises dextrose. The pharmaceutical compositions obtained using the method of the invention are stable and useful for animal and clinical applications.
Illustrative examples of water-soluble organic solvents for use in the compositions and methods of the present invention include, but are not limited to, polyethylene glycol (PEG), alcohols, acetonitrile, N-methyl-2-pyrrolidone, N-dimethylformamide, N-dimethylacetamide, dimethylsulfoxide, or combinations thereof. Examples of alcohols include, but are not limited to, methanol, ethanol, isopropanol, glycerol, or propylene glycol.
Illustrative examples of water-soluble nonionic surfactants useful in the methods and compositions of the present invention include, but are not limited toEL, polyethylene glycol modified(polyoxyethyleneglycerol triricinoleate 35), hydrogenatedRH40, hydrogenationRH60, PEG-succinate, polysorbate 20, polysorbate 80,HS (polyethylene glycol 66012-hydroxystearate), sorbitan monooleate, poloxamer,(ethoxylated peach kernel oil),(octanoyl-hexanoyl polyethylene glycol 8-glycerides),(glycerides),(PEG 6 glyceryl caprylate), glycerin, ethylene glycol-polysorbate, or a combination thereof.
Illustrative examples of water-soluble lipids for use in the methods and compositions of the present invention include, but are not limited to, vegetable oils, triglycerides, vegetable oils, or combinations thereof. Examples of lipid oils include, but are not limited to, castor oil, polyoxyethylene castor oil, corn oil, olive oil, cottonseed oil, peanut oil, peppermint oil, safflower oil, sesame oil, soybean oil, hydrogenated vegetable oil, hydrogenated soybean oil, triglycerides of coconut oil, palm seed oil (palm seed oil), hydrogenated versions thereof, or combinations thereof.
Illustrative examples of fatty acids and fatty acid esters for use in the methods and compositions of the present invention include, but are not limited to, oleic acid, monoglycerides, diglycerides, mono-or di-fatty acid esters of PEG, or combinations thereof. Illustrative examples of cyclodextrins for use in the methods of the present invention include, but are not limited to, alpha-cyclodextrin, beta-cyclodextrin, hydroxypropyl-beta-cyclodextrin, or sulfobutyl ether-beta-cyclodextrin.
Illustrative examples of phospholipids for use in the methods and compositions of the present invention include, but are not limited to, soy phosphatidylcholine or distearoylphosphatidylglycerol (distearoylphosphatidylglycerol), hydrogenated forms thereof, or combinations thereof.
In addition to the carriers useful in the pharmaceutical compositions of the present invention, the compounds may also be admixed with excipients which are useful in solubilizing, stabilizing or conditioning the compounds of formula (I) to give a suitably formulated composition for storage or administration. Excipients include colorants, flavors, stabilizers, disintegrants, glidants, lubricants, preservatives, and the like.
In many embodiments, the compounds of formula (I) are formulated as solutions, emulsions, dispersions or suspensions suitable for injection or infusion, or so that they can be readily diluted for intravenous administration or infusion.
One of ordinary skill in the art can, within the teachings of this specification, adjust the formulation to provide a variety of formulations for a particular route of administration. In particular, the compounds may be adjusted to make them more soluble in water or other carriers, often using the solvating agents disclosed above (solvating agents), particularly those known in the art to be pharmaceutically acceptable and suitable for administration by injection or infusion. It is well within the ordinary skill in the art to select or adjust the route of administration and dosage regimen of a particular compound to control the pharmacokinetics of the compounds of the present invention to achieve the greatest beneficial effect in a patient.
Pharmaceutical combination
Methods of using the compounds of formula (I) include administering an effective amount of at least one exemplary compound of formula (I); optionally, the compound may be administered in combination with one or more additional therapeutic agents, particularly at least one therapeutic agent useful in treating the same condition for which a compound of formula (I) is indicated, or treating a symptom or complication of the condition, or alleviating a side effect associated with the treatment of the condition.
The one or more additional therapeutic agents may be administered in separate pharmaceutical compositions with the compound of formula (I) or may be contained in a single pharmaceutical composition with the compound of the present application. The additional therapeutic agent may be administered simultaneously with, before or after the compound of formula (I) herein.
Methods of using compounds of formula (I) and pharmaceutical compositions thereof
The invention provides pharmaceutical compositions for the treatment and/or prevention of the disorders described herein as well as methods of using these compounds and compositions containing compounds of formula I described herein. The method typically comprises administering the compound or composition to an individual, typically a human. In some embodiments, the methods are for treatment, and the individual is an individual who has been diagnosed as in need of such treatment for a condition selected from those described herein. Preferably, the compound or composition is administered in an amount effective to treat the condition in the individual. In view of the disclosure provided herein and conventional testing, treatment, and monitoring practices, it is within the ordinary skill in the art to select suitable compounds of formula (I) and suitable formulations thereof, as well as suitable routes of administration and dosages thereof. For reasons of solubility, the compounds of formula I are often formulated and administered in the form of pharmaceutically acceptable salts.
To practice the methods of the present invention, the compounds of formula (I) and pharmaceutical compositions thereof may be administered orally, parenterally, by inhalation, topically, rectally, nasally, buccally, vaginally, via implanted reservoirs, or other routes of drug administration. Typically, the compound of formula (I) is administered by parenteral route. The term "parenteral" as used herein includes subcutaneous, intradermal, intravenous, intramuscular, intraarticular, intraarterial, intrasynovial, intrasternal, intrathecal, intralesional and intracranial injection or infusion techniques. The preferred route of administration of the compounds of formula (I) is intravenous injection or intravenous infusion, usually in the form of a solution or suspension comprising a typical intravenous fluid, such as isotonic saline or isotonic glucose solution or ringer's lactate.
Suitable carriers and other pharmaceutical composition ingredients are typically sterile. Sterile injectable compositions can be formulated according to the known art using suitable dispersing or wetting agents and suspending agents as required, for example, sterile injectable aqueous or oleaginous suspensions. The sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally-acceptable diluent or solvent. Acceptable vehicles and solvents that may be used include mannitol, dextrose, citrate buffer, water, ringer's solution, and isotonic sodium chloride solution.
In addition, sterile, fixed oils are conventionally employed as a solvent or suspending medium (e.g., synthetic mono-or diglycerides). Fatty acids such as oleic acid and its glyceride derivatives are useful in the preparation of injectables, as are pharmaceutically-acceptable oils, such as olive oil or castor oil, especially in their polyoxyethylated versions. These oil solutions or suspensions may also contain a long chain alcohol diluent or dispersant, or carboxymethyl cellulose or similar dispersing agents. Various emulsifying agents or bioavailability enhancing agents commonly used in the manufacture of pharmaceutically acceptable solid, liquid, or other dosage forms may also be used for formulation purposes.
Compositions for oral administration may be in any orally acceptable dosage form including, but not limited to, tablets, capsules, emulsions, and aqueous suspensions, dispersions, and solutions. For tablets for oral use, commonly used carriers include lactose and corn starch. Lubricating agents such as magnesium stearate may also be added. For oral administration in capsule form, useful diluents include lactose and dried corn starch. When aqueous suspensions or emulsions are administered orally, the active ingredient may be suspended or dissolved in an oily phase combined with emulsifying or suspending agents. If desired, certain sweetening, flavoring or coloring agents may be added. Nasal aerosol or inhalation compositions can be prepared according to techniques well known in the art of pharmaceutical formulation and can be prepared as solutions in, for example, saline, using suitable preservatives (e.g., benzyl alcohol), absorption promoters to enhance bioavailability, and/or other solubilizing or dispersing agents known in the art.
The compounds and compositions of the invention are useful for treating conditions mediated by AMPs. Indications for treatment with a compound of formula (I) include cancer, diabetes, ischemic injury, obesity, hyperlipidemia or cardiac disorders. In specific embodiments, the indication is selected from leukemia, lymphoma, type 2 diabetes, and obesity.
The subject treated with the compounds of the invention is a mammal, particularly a human, having or at risk of having a disorder in which ZMP provides a therapeutic effect. In some embodiments, the individual is a human diagnosed with cancer, particularly with cancer sensitive to a compound of formula (I). In other embodiments, the subject is a subject having cancer, diabetes, ischemic injury, obesity, hyperlipidemia, or a cardiac disorder. In particular embodiments, the subject is a subject diagnosed with leukemia, lymphoma, type 2 diabetes, or obesity.
Synthesis of Compounds of formula (I)
Scheme 1 Synthesis of dimethyl phosphate Compounds
Compound 1The starting nucleoside (0.166g,0.643mmol) was suspended in trimethyl phosphate (3 ml). Under nitrogen, pure phosphorus oxychloride (0.359ml,3.86mmol) was added with stirring. The reaction was stirred at room temperature for 2 hours. Methanol (0.500ml,12mmol) was then added and the reaction stirred at room temperature for 30 min. Triethylamine (2ml,15mmol) was carefully added to quench. The reaction was diluted with 40ml of acetonitrile and loaded onto a silica gel column. The desired product (0.075g, 32%) was eluted using a gradient of 0-30% methanol in acetonitrile ([ M +1 ])],367)
Scheme 2.
Compound 2The starting nucleoside (0.155g,0.6mmol) was suspended in trimethyl phosphate (3 ml). Under nitrogen, pure phosphorus oxychloride (0.335ml,3.6mmol) was added with stirring. The reaction was stirred at room temperature for 2 hours. 4-Nitrophenol (2.085g,15mmol) was then added and the reaction stirred at room temperature for 30 min. Triethylamine (15mmol, 2) was added carefullyml) was quenched. The reaction was diluted with ethyl acetate (30ml) and loaded onto a silica gel column. The desired product (0.174g, 50%) was eluted using a gradient of 0-10% methanol in ethyl acetate ([ M +1 ])],581)
Compound 3Starting di- (nitrophenyl) phosphate nucleoside (0.100g,0.17mmol) was dissolved in methanol (15 ml). Purified triethylamine (0.117ml,0.85mmol) was added under nitrogen with stirring. The reaction was stirred at room temperature for 3 hours. Acetic acid (0.120ml,2mmol) was added to quench. The solvent was removed by rotary evaporation. The residue was dissolved in DCM and loaded onto a silica gel column. The desired product (0.035g, 43%) was eluted using a gradient of 0-20% methanol in ethyl acetate ([ M +1 ])],474)
Compound 4Starting nitrophenylmethyl phosphate nucleoside (0.025g,0.05mmol) was dissolved in a 1:1 mixture of THF and water (5 ml). Pure triethylamine (0.034ml,0.25mmol) was added under nitrogen with stirring. The reaction was heated to 55 ℃ and stirred for 2 hours. Acetic acid (0.050ml,0.8mmol) was added to quench. The solvent was removed by rotary evaporation. The desired product was purified by preparative hplc (0.007g, 40%) ([ M +1 ])],353)
Scheme 3.
Compound 5The starting nucleoside (0.100g,0.39mmol) was suspended in trimethyl phosphate (3 ml). Under nitrogen, a proton sponge (0.332g,1.55mmol) was added with stirring. The reaction was stirred at room temperature for 10 minutes, then pure 4-chlorophenyl dichlorophosphate (4-chlorophenylphosphorodichloride) (0.252ml,1.55mmol) was added. The reaction was stirred at room temperature for 1 hour. Water (1ml) was then added and the reaction was stirred at room temperature for 30 minutes. Triethylamine (10mmol,2ml) was carefully added to quench. The reaction was diluted with acetonitrile (30ml) and loaded onto a silica gel column. The desired product (0.070g, 40%) was eluted using a gradient of 0-30% methanol in acetonitrile ([ M +1 ])],449)
Scheme 4.
Compound 6Starting nucleoside (0.204g,0.79mmol) and phosphate TEA salt (0.514g,1.58mmol) were suspended in acetonitrile (10 ml). 1-methylimidazole (0.314ml,3.95mmol) was added under nitrogen with stirring. The reaction was stirred at room temperature for 10 minutes, then bis (2-oxo-3-oxazolidinyl) phosphinic chloride (0.402g,1.58mmol) was added. The reaction was stirred at room temperature for 1 hour, then additional bis (2-oxo-3-oxazolidinyl) phosphinic chloride (0.804g,3.16mmol) was added. The reaction was stirred for 2 hours. When the reaction was complete as confirmed by LC/MS, the solvent was removed by rotary evaporation. The desired product was purified by preparative HPLC. (0.075g, 17%) ([ M +1 ]],571)
Compound 7The starting poc phosphate nucleoside (0.050g,0.09mmol) was dissolved in a 1:1 mixture of THF and water (4 ml). Neat triethylamine (0.027ml,0.2mmol) was added under nitrogen with stirring. The reaction was stirred at room temperature for 1 hour. When the reaction was complete as confirmed by LC/MS, acetic acid (0.100ml,1.7mmol) was added for quenching. The solvent was removed by rotary evaporation. The desired product (0.013g, 32%) was purified by preparative hplc ([ M +1 ])],455)
Biological Activity of Compounds of formula (I)
Some exemplary assays and examples for evaluating the therapeutic efficacy, e.g., anti-cancer effect, of exemplary compounds of the invention are described herein or are known in the art. HEK293 is a human renal cell line and the effectiveness of HEK293 is considered predictive of therapeutic usefulness. In the following figures, the activity of the compounds on HEK293 cells was reported as CC50 or 50% cytotoxic concentration (micromolar) according to the methods described below.
FIG. 1 Activity of SB00039 on HEK293 cells.
CC50 in HEK293 cells
The first two structures in FIG. 1 are the known compounds AICAR and ZMP. The third structure (SB00024) is a ZMP analogue that is not cleavable (a structure that is not expected to be readily cleavable in vivo) and is inactive at 500 uM. The fourth structure (SB00039) is an exemplary prodrug of formula I exhibiting about 100 times the potency of AICAR. The last structure in figure 1 (SB00038) is an unmasked byproduct of the prodrug. The efficacy of SB00039 was demonstrated by testing to come from penetrating cells and unmasked to produce prodrugs of ZMP, not from this byproduct.
The potency of SM00039 is surprising, as other prodrugs of ZMPs do not exhibit improved potency. Figure 2 shows a number of other prodrugs of ZMP that do not enhance their efficacy in the HEK293 assay.
Figure 2 prodrugs of ZMP that do not enhance efficacy against HEK 293.
Several ZMP prodrugs have been reported in the literature, which also do not show efficacy in the HEK293 assay.
McGuigan,Eur.J.Med.Chem.70,326-40(2013).
The Bookser et al, to the general public,J.Combinatorial Chem.10(4),567-72(2008).
the foregoing data demonstrate that the compounds of the present invention provide therapeutic activity superior to AICAR and ZMP, and superior to known ZMP prodrugs.
Materials and methods
Cell culture and reagents
HEK293 cells were obtained from the American Type culture Collection (American Type)Culture Collection) (ATCC) (Rockville Maryland). Cells were maintained in Dulbecco's Modified Eagle Medium (DMEM) (Invitrogen, Carlsbad, Calif.) with 10% Fetal Bovine Serum (FBS), 10mM HEPES and 1mM sodium pyruvate. Cells were incubated at 37 ℃ with 5% CO2Growth in a humidified incubator in the gas phase. Cells were grown in tripleflask (nunc) for 24 hours to-95% confluence and then resuspended in DMEM, 10% FBS, 10mM Hepes and 1mM sodium pyruvate at 125,000 cells/mL.
HEK293 cytotoxicity assay
HEK293 cells were seeded in 96-well microtiter plates at 10000 cells/well. After 24 hours of incubation, an equal volume of fresh medium containing the test compound at the given concentration was added. The plate was then incubated, and the cells were incubated at 37 deg.C, 95% humidity and 5% CO2Proliferation was carried out under conditions for 48 hours. At 72 hours, the plate was removed from the incubator and cooled to room temperature for 15 minutes. Promega CellTiterGlo solution (100. mu.l) was added by Thermo Combi, the plate was left for 10 minutes, and then read 0.1 sec/well with a Perkin-Elmer EnVision with US LUM settings. The 50% cytotoxic concentration (CC50) was defined as the concentration of compound required to reduce viable cells by 50%.
The detailed description given above is provided to assist those skilled in the art in practicing the present invention. The scope of the invention described and claimed herein, however, is not limited by the particular embodiments disclosed herein, as these embodiments are intended as illustrations of several aspects of the invention. Any equivalent embodiments are within the scope of the invention. Indeed, various modifications of the invention in addition to those shown and described herein will become apparent to those skilled in the art from the foregoing description without departing from the spirit or scope of the invention's discoveries. Such modifications are also intended to fall within the scope of the appended claims.
All publications, patents, patent applications, and other references cited in this application are herein incorporated by reference in their entirety for all purposes to the same extent as if each individual publication, patent application, or other reference were specifically and individually indicated to be incorporated by reference for all purposes. Citation of a reference herein shall not be construed as an admission that such is prior art to the present invention.