Novel pyrrole compounds
阅读说明：本技术 新型吡咯化合物 (Novel pyrrole compounds ) 是由 谢雨礼 樊后兴 钱立晖 于 2019-12-03 设计创作，主要内容包括：本发明涉及一类新型吡咯化合物及其制备方法和用途。具体地,本发明涉及通式(1)所示的化合物及其制备方法,以及通式(1)化合物及其各光学异构体、各晶型、药学上可接受的盐在预防或治疗真菌感染相关疾病的药物制备中的用途。(The invention relates to a novel pyrrole compound and a preparation method and application thereof. Specifically, the invention relates to a compound shown in a general formula (1) and a preparation method thereof, and application of the compound shown in the general formula (1) and each optical isomer, each crystal form and pharmaceutically acceptable salt thereof in preparation of a medicament for preventing or treating diseases related to fungal infection.)
1. A compound with a structure shown as a general formula (1) or each optical isomer, each crystal form, pharmaceutically acceptable salt, hydrate or solvate thereof:
wherein the content of the first and second substances,
"+" indicates a chiral center;
R1h, C1-C6 alkyl, (C1-C3) alkoxy- (C2-C3) alkyl-, (C3-C6) cycloalkyl- (C1-C3) alkyl-, C3-C6 cycloalkyl or halogen-substituted C1-C6 alkyl;
R2is H, C1-C3 alkyl or C3-C6 cycloalkyl;
R3is H or halogen;
R4is H, halogen, C1-C3 alkyl, C3-C6 cycloalkyl, aryl or heteroaryl, which aryl or heteroaryl may be substituted with 1to 3 of the following groups: halogen, C1-C3 alkyl, C3-C6 cycloalkyl, C1-C3 alkoxy, halogen-substituted C1-C3 alkyl or halogen-substituted C1-C3 alkoxy, which when substituted with multiple substituents may be the same or different;
R5is H, Me, OMe or halogen;
w is-O-or-NR6-, wherein R6Is H, C1-C3 alkyl or C3-C6 cycloalkyl;
q is-O-or-NR7-, wherein R7H, C1-C3 alkyl, C3-C6 cycloalkyl, (C3-C6) cycloalkyl- (C1-C3) alkyl-, heterocycloalkyl-, aryl-or heteroaryl, which aryl or heteroaryl may be substituted with 1to 3 of the following groups: halogen, C1-C3 alkyl, C3-C6 cycloalkyl, C1-C3 alkoxy, halogen-substituted C1-C3 alkyl or halogen-substituted C1-C3 alkoxy, which when substituted with multiple substituents may be the same or different.
2. The compound according to claim 1, wherein in the general formula (1), R is1Is H, Me, Et,n-Pr、i-Pr、t-Bu、-CH2CH2OMe、
3. The compound according to claim 1-2, wherein in the general formula (1), R is2Is H, Me, Et or
4. A compound according to claims 1to 3, wherein in the general formula (1), R is3Is H or F.
5. The compound according to claim 1to 4, wherein in the general formula (1), R is4Is composed of
Wherein R is8And R9Independently H, halogen, C1-C3 alkyl, C3-C6 cycloalkyl, C1-C3 alkoxy, halogen-substituted C1-C3 alkyl or halogen-substituted C1-C3 alkoxy.
6. The compound according to claim 1to 5, wherein in the general formula (1), R is5H, F, Cl or OMe.
7. The compound according to claim 1to 6, wherein in the general formula (1), W is-O-or-NMe-.
8. The compound of claims 1-7, wherein the formula (la), (lb), (1) In which Q is-O-or-NR7-, wherein R7Is H, Me, Et,n-Pr、i-Pr、t-Bu、i-Bu、 Wherein R is10And R11Independently H, halogen, C1-C3 alkyl, C3-C6 cycloalkyl, C1-C3 alkoxy, halogen-substituted C1-C3 alkyl or halogen-substituted C1-C3 alkoxy.
9. The compound of claims 1-5, or a pharmaceutically acceptable salt thereof, wherein the compound has one of the following structures:
10. a pharmaceutical composition comprising a pharmaceutically acceptable excipient or carrier and, as active ingredient, a compound according to any one of claims 1to 9, or each optical isomer, pharmaceutically acceptable salt, hydrate or solvate thereof.
11. A compound according to any one of claims 1to 9, a composition according to claim 10, wherein the compound or composition is for use in the prophylaxis or treatment of a fungal infection disease.
Technical Field
The invention belongs to the field of pharmaceutical chemistry, and particularly relates to a novel pyrrole compound, a preparation method thereof and application of the compound.
Background
Invasive Fungal Infections (IFI) have become one of the serious threats to human health, with over a million people dying in the world every year. Although fungal infections may also occur in healthy people, most fungal infections originate from immunocompromised patients, and thus antifungal drugs targeting fungi are the primary means of treating IFI. With the increasing use of immunosuppressive agents, tumor chemoradiotherapy, in-vivo catheterization and long-standing ICU patients, the increasing incidence and mortality of IFI is attracting increasing attention year by year. However, the antifungal drugs commonly used in clinic are limited, and mainly include azoles, polyenes, echinocandins, 5-fluorocytosine and the like [ Biochem Pharmacol,2017,133:86-96 ].
Azoles are currently the most commonly used class of antifungal drugs, and can be classified into imidazoles and triazoles according to their chemical structures. Imidazole drugs (miconazole, ketoconazole, etc.) were developed at the earliest and had high antifungal activity, but were limited to external use due to their high toxicity. Triazole drugs appear late and can be administered in vivo to treat IFI, primarily through the cytochrome P450 enzyme-dependent mechanism to inhibit 14- α lanosterol demethylase (CYP 51). Inhibit the conversion of lanosterol in the fungal cell membrane to ergosterol and allow toxic sterols to accumulate in the fungal cell, thereby inhibiting the growth and replication of the fungus. The main problems faced by azole drugs are drug resistance and their proteasome inhibition of CYP51 (CYP3a4, CYP2C9, etc.) in humans. Are prone to cause interaction with a wide variety of drugs. Polyene drugs are effective only against fungi containing sterols in their outer membrane, and their exact antifungal mechanism is not yet fully understood. Amphotericin B in polyene hydrocarbon drugs is the most effective anti-IFI drug at present, but has serious toxic and side effects such as fever, chill, nephrotoxicity and the like [ Med Mycol,2017,55(1): 118-. Echinocandin class compounds inhibit cell wall synthesis by inhibiting-glucan. The echinocandin drugs commonly used in clinic are only three of caspofungin, micafungin and anidulafungin, have narrow antibacterial spectrum, are ineffective to cryptococcus, are difficult to absorb through gastrointestinal tracts, and can only maintain the drug concentration in vivo through once-a-day intravenous drip administration. Furthermore, the emergence of echinocandin-resistant fungi due to genetic mutations has also limited the use of such drugs [ Lancet,2003,362(9390):1142 and 1151 ]. 5-fluorocytosine is a pyrimidine analogue of the major component of RNA, DNA. It inhibits cell growth mainly by interfering with the metabolism of intracellular pyrimidines, as well as the synthesis of DNA, RNA, and consequently proteins. In addition to the four broad classes of antibacterial agents described above, WO2009/130481 discloses that a novel class of pyrrole compounds also have potent antifungal activity.
From the above, drug therapy is the main strategy for handling IFI, however, the limited kinds of drugs, the increasingly serious drug resistance and toxic and side effects, etc. have caused the demand for developing new antifungal drugs to become more urgent, and new antifungal drugs are urgently needed in clinic, thus bringing positive treatment effect to patients.
Disclosure of Invention
The invention aims to provide a compound with a structural general formula shown in formula (1), or optical isomers, crystal forms, pharmaceutically acceptable salts, hydrates or solvates thereof:
wherein the content of the first and second substances,
"+" indicates a chiral center;
R1h, C1-C6 alkyl, (C1-C3) alkoxy- (C2-C3) alkyl-, (C3-C6) cycloalkyl- (C1-C3) alkyl-, C3-C6 cycloalkyl or halogen-substituted C1-C6 alkyl;
R2is H, C1-C3 alkyl or C3-C6 cycloalkyl;
R3is H or halogen;
R4is H, halogen, C1-C3 alkyl, C3-C6 cycloalkyl, aryl or heteroaryl, which aryl or heteroaryl may be substituted with 1to 3 of the following groups: halogen, C1-C3 alkyl, C3-C6 cycloalkyl, C1-C3 alkoxy, halogen-substituted C1-C3 alkyl or halogen-substituted C1-C3 alkoxy, which when substituted with multiple substituents may be the same or different;
R5is H, Me, OMe or halogen;
w is-O-or-NR6-, wherein R6Is H, C1-C3 alkyl or C3-C6 cycloalkyl;
q is-O-or-NR7-, wherein R7H, C1-C3 alkyl, C3-C6 cycloalkyl, (C3-C6) cycloalkyl- (C1-C3) alkyl-, heterocycloalkyl-, aryl-or heteroaryl, which aryl or heteroaryl may be substituted with 1to 3 of the following groups: halogen, C1-C3 alkyl C3-C6 cycloalkyl, C1-C3 alkoxy, halogen-substituted C1-C3 alkyl or halogen-substituted C1-C3 alkoxy, which when substituted with multiple substituents may be the same or different.
In another preferred embodiment, wherein in said general formula (1), R1Is H, Me, Et,n-Pr、i-Pr、t-Bu、-CH2CH2OMe、
In another preferred embodiment, wherein in said general formula (1), R2Is H, Me, Et or
In another preferred embodiment, wherein in said general formula (1), R3Is H or F.
In another preferred embodiment, wherein in said general formula (1), R4Is composed of Wherein R is8And R9Independently H, halogen, C1-C3 alkyl, C3-C6 cycloalkyl, C1-C3 alkoxy, halogen-substituted C1-C3 alkyl or halogen-substituted C1-C3 alkoxy.
In another preferred embodiment, wherein in said general formula (1), R5H, F, Cl or OMe.
In another preferred embodiment, wherein in the general formula (1), W is-O-or-NMe-.
In another preferred embodiment, wherein in said general formula (1), Q is-O-or-NR7-, wherein R7Is H, Me, Et,n-Pr、i-Pr、t-Bu、i-Bu、
Wherein R is10And R11Independently H, halogen, C1-C3 alkyl, C3-C6 cycloalkyl, C1-C3 alkoxy, halogen-substituted C1-C3 alkyl or halogen-substituted C1-C3 alkoxy.
In some embodiments of the invention, the above compound, isomer, or pharmaceutically acceptable salt is selected from the group consisting of:
another object of the present invention is to provide a pharmaceutical composition comprising a pharmaceutically acceptable excipient or carrier and, as an active ingredient, a compound of the general formula (1) of the present invention, or each of its optical isomers, a pharmaceutically acceptable inorganic or organic salt.
Still another object of the present invention is to provide the use of the above compound of the present invention, or each optical isomer, pharmaceutically acceptable inorganic or organic salt thereof, for the preparation of a medicament for treating diseases associated with fungal infections.
It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
Definitions and explanations
As used herein, the following terms and phrases are intended to have the following meanings, unless otherwise indicated. A particular term or phrase, unless specifically defined otherwise, should not be considered as indefinite or unclear, but rather construed according to a common definition, when appearing herein with a trade name, is intended to refer to its corresponding commodity or its active ingredient. The term "pharmaceutically acceptable" as used herein is intended to refer to those compounds, compositions and/or formulations 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 term "pharmaceutically acceptable salt" refers to a form of a compound that does not cause significant irritation to the organism to which it is administered and does not abrogate the biological activity and properties of the compound. In certain particular aspects, pharmaceutically acceptable salts are obtained by reacting a compound of formula (1) with an acid, such as an inorganic acid, e.g., hydrochloric acid, hydrobromic acid, hydrofluoric acid, sulfuric acid, phosphoric acid, nitric acid, phosphoric acid, etc., an organic acid, e.g., formic acid, acetic acid, propionic acid, oxalic acid, trifluoroacetic acid, malonic acid, succinic acid, fumaric acid, maleic acid, lactic acid, malic acid, tartaric acid, citric acid, picric acid, methanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid, etc., and an acidic amino acid, e.g., aspartic acid, glutamic acid, etc.
References to pharmaceutically acceptable salts are understood to include solvent addition forms or crystalline forms, especially solvates or polymorphs. Solvates contain either stoichiometric or non-stoichiometric amounts of solvent and are selectively formed during crystallization with pharmaceutically acceptable solvents such as water, ethanol, and the like. Hydrates are formed when the solvent is water, or alcoholates are formed when the solvent is ethanol. Solvates of the compounds of formula (1) are conveniently prepared or formed as described herein. For example, the hydrate of the compound of formula (1) is conveniently prepared by recrystallization from a mixed solvent of water/organic solvent, using an organic solvent including, but not limited to, acetonitrile, tetrahydrofuran, ethanol or methanol. In addition, the compounds mentioned herein can exist in unsolvated as well as solvated forms. In general, the solvated forms are considered equivalent to unsolvated forms for purposes of the compounds and methods provided herein.
In other embodiments, the compound of formula (1) is prepared in different forms, including, but not limited to, amorphous, pulverized, and nano-sized forms. In addition, the compound of formula (1) includes crystalline forms, and may also be polymorphic forms. Polymorphs include different lattice arrangements of the same elemental composition of a compound. Polymorphs typically have different X-ray diffraction patterns, infrared spectra, melting points, densities, hardness, crystal forms, optical and electrical properties, stability and solubility. Different factors such as recrystallization solvent, crystallization rate and storage temperature may cause a single crystal form to dominate.
In another aspect, the compounds of formula (1) have one or more stereogenic centers and thus occur as racemates, racemic mixtures, single enantiomers, diastereomeric compounds and single diastereomers. Asymmetric centers that may be present depend on the nature of the various substituents on the molecule. Each such asymmetric center will independently produce two optical isomers and all possible optical isomers and diastereomeric mixtures and pure or partially pure compounds are included within the scope of the invention. The present invention is meant to include all such isomeric forms of these compounds.
Using wedge-shaped keys, unless otherwise indicatedAnd dotted bondRepresenting an absolute configuration of a solid centre, by wavy linesDenotes a wedge bond or a dotted bond: (Or)。
The compounds of the present invention may contain unnatural proportions of atomic isotopes at one or more of the atoms that constitute such compounds. For example, the compounds may be labelled with radioactive isotopes, such as tritium (A), (B), (C3H) Iodine-125 (125I) Or carbon-14 (14C) In that respect 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.
The compound and the pharmaceutically acceptable salt thereof can be prepared into various preparations, wherein the preparation comprises the compound or the pharmaceutically acceptable salt thereof in a safe and effective amount range and a pharmaceutically acceptable excipient or carrier. Wherein "safe, effective amount" means: the amount of the compound is sufficient to significantly improve the condition without causing serious side effects. The safe and effective amount of the compound is determined according to the age, condition, course of treatment and other specific conditions of a treated subject.
"pharmaceutically acceptable excipient or carrier" refers to: one or more compatible solid or liquid fillers or gel substances which are suitable for human use and must be of sufficient purity and sufficiently low toxicity. Examples of pharmaceutically acceptable excipients or carrier moieties are cellulose and its derivatives (e.g. sodium carboxymethylcellulose, sodium ethylcellulose, cellulose acetate etc.), gelatin, talc, solid lubricants (e.g. stearic acid, magnesium stearate), calcium sulfate, vegetable oils (e.g. soybean oil, sesame oil, peanut oil, olive oil etc.), polyols (e.g. propylene glycol, glycerol, mannitol, sorbitol etc.), emulsifiers (e.g. propylene glycol, glycerol, mannitol, sorbitol etc.)) Wetting agents (e.g., sodium lauryl sulfate), coloring agents, flavoring agents, stabilizers, antioxidants, preservatives, pyrogen-free water, and the like.
When the compounds of the present invention are administered, they may be administered orally, rectally, parenterally (intravenously, intramuscularly or subcutaneously), topically.
Unless otherwise specified, the term "alkyl" denotes saturated aliphatic hydrocarbon groups, including straight and branched chain groups of 1to 6 carbon atoms. Lower alkyl groups having 1to 4 carbon atoms are preferred, such as methyl, ethyl, propyl, 2-propyl, n-butyl, isobutyl, tert-butyl. As used herein, "alkyl" includes unsubstituted and substituted alkyl groups, especially with one or more halo groupsAlkyl substituted with an alkyl group. Preferred alkyl groups are selected from CH3、CH3CH2、CF3、CHF2、CF3CH2、iPr、nPr、iBu、 nBu ortBu。
"cycloalkyl" refers to a non-aromatic cyclic group. "alkoxy" means an alkyl-O-group bonded to the parent moiety through an oxygen. (C1-C3) alkoxy- (C2-C3) alkyl-is a group formed by the joining of (C1-C3) alkoxy and- (C2-C3) alkyl, and is bonded to the parent moiety through (C2-C3) alkyl. (C3-C6) cycloalkyl- (C1-C3) alkyl-is a group formed by the attachment of (C3-C6) cycloalkyl and (C2-C3) alkyl, and is bonded to the parent moiety through (C1-C3) alkyl.
An "aryl" group is an aromatic monocyclic or polycyclic ring system. Preferred aryl groups include, but are not limited to, phenyl. "heteroaryl" refers to an aromatic monocyclic or polycyclic group containing one or more ring atoms. Preferred 5-to 10-membered heteroaryl groups include, but are not limited to, pyridyl, pyrazinyl, furyl, thienyl, pyrimidinyl, pyridone, oxazolyl, isothiazolyl, oxazolyl, oxadiazolyl, thiazolyl, thiadiazolyl, pyrazolyl, furaronyl, pyrrolyl, triazolyl, 1,2, 4-thiadiazolyl, pyridazinyl, quinoxalinyl, phthalazinyl, oxindolyl, imidazo [1,2-a ] pyridyl, imidazo [2,1-b ] thiazolyl, benzofuroyl, indolyl, azaindolyl, benzimidazolyl, benzothienyl, quinolyl, imidazolyl, thienopyridyl, quinazolinyl, thienopyrimidinyl, pyrrolopyridyl, imidazopyridine, isoquinolyl, benzazinyl, 1,2, 4-triazinyl, benzothiazolyl, and oxides thereof.
Unless otherwise specified, the term "heterocycloalkyl" refers to a saturated or partially saturated non-aromatic cyclic group consisting of carbon atoms and a heteroatom selected from nitrogen, oxygen or sulfur, which cyclic group may be a monocyclic or polycyclic group, in the present invention, the number of heteroatoms in the heterocycloalkyl is preferably 1,2, 3 or 4, and the nitrogen, carbon or sulfur atom in the heterocycloalkyl may be optionally oxidized. The nitrogen atom may optionally be further substituted with other groups to form tertiary amines or quaternary ammonium salts. Examples of heterocycloalkyl groups include, but are not limited to: aziridinyl, azetidin-1-yl, N-alkylazetidin-3-yl, tetrahydrofuran-2-yl, tetrahydrofuran-3-yl, morpholin-4-yl, thiomorpholin-S-oxid-4-yl, piperidin-1-yl, N-alkylpiperidin-4-yl, pyrrolidin-1-yl, N-alkylpyrrolidin-2-yl, piperazin-1-yl, 4-alkylpiperazin-1-yl, and the like.
Unless otherwise specified, the term "halogen substituted" or "halogen" by itself or as part of another substituent means a fluorine, chlorine, bromine or iodine atom. Further, "haloalkyl" is intended to include monohaloalkyl or polyhaloalkyl. For example, "halogenated C1-C3 alkyl" is intended to include, but is not limited to, trifluoromethyl, 2,2, 2-trifluoroethyl, 2-chloropropyl, 3-bromopropyl, and the like.
The term "membered ring" includes any cyclic structure. The term "element" is intended to mean the number of backbone atoms constituting a ring. For example, cyclohexyl, pyridyl, pyranyl, thiopyranyl are six-membered rings, and cyclopentyl, pyrrolyl, furanyl, and thienyl are five-membered rings.
The term "fragment" refers to a specific part or functional group of a molecule. Chemical moieties are generally considered to be chemical entities contained in or attached to a molecule.
Synthesis of Compounds
The following specifically describes the production process of the compound of formula (1) of the present invention, but these specific processes do not set any limit to the present invention.
The compounds of formula (1) described above may be synthesized using standard synthetic techniques or known techniques in combination with the methods described herein. In addition, the solvents, temperatures and other reaction conditions mentioned herein may vary. The starting materials for the synthesis of the compounds of table 1 may be synthesized or obtained from commercial sources, such as, but not limited to, Aldrich Chemical co. (Milwaukee, Wis.) or Sigma Chemical co. (st. The compounds described herein and other related compounds having various substituents can be synthesized using well-known techniques and starting materials, including those found in March, ADVANCED ORGANIC CHEMISTRY 4thEd., (Wiley 1992); carey and Sundberg, ADVANCED ORGANIC CHEMISTRY 4thEd, Vols.A and B (Plenum 2000, 2001), Green and Wuts, PROTECTIVE GROUPS IN ORGANIC synthieSIS 3rdThe method in ed., (Wiley 1999). The general method of compound preparation may be varied by the use of appropriate reagents and conditions for introducing different groups into the formulae provided herein.
In one aspect, the compounds described herein are according to methods well known in the art. However, the conditions of the method, such as reactants, solvent, base, amount of the compound used, reaction temperature, time required for the reaction, and the like, are not limited to the following explanation. The compounds of the present invention may also be conveniently prepared by optionally combining various synthetic methods described in the present specification or known in the art, and such combinations may be readily carried out by those skilled in the art to which the present invention pertains. In one aspect, the present invention also provides a method for preparing the compound represented by formula (1), which comprises the following steps:
method a comprises the following steps: firstly, a compound A1 and a compound A2 react under alkaline conditions to generate a compound A3, the compound A3 further reacts under the action of strong alkali to generate a compound A4, the compound A4 is subjected to protecting group removal to obtain a compound A5, the compound A5 reacts with a proper raw material to obtain a compound A7, and finally the compound A7 and the compound A8 are subjected to induction to obtain a target compound A9.
W, R in the above reaction equation1、R2、R3、R4、R5And R7As defined above.
The features mentioned above with reference to the invention, or the features mentioned with reference to the embodiments, can be combined arbitrarily. All the features disclosed in this specification may be combined in any combination, and each feature disclosed in this specification may be replaced by alternative features serving the same, equivalent or similar purpose. Thus, unless expressly stated otherwise, the features disclosed are merely generic examples of equivalent or similar features.
The various specific aspects, features and advantages of the compounds, methods and pharmaceutical compositions described above are set forth in detail in the following description, which makes the present invention clear. It should be understood herein that the detailed description and examples, while indicating specific embodiments, are given by way of illustration only. After reading the description of the invention, one skilled in the art can make various changes or modifications to the invention, and such equivalents fall within the scope of the invention as defined in the application.
In all of the embodiments described herein, the first,1H-NMR was recorded using a Vian Mercury 400 NMR spectrometer with chemical shifts expressed in delta (ppm); the silica gel used for separation is not illustrated to be 200-300 meshes, and the proportions of the eluents are volume ratios.
The invention employs the following abbreviations: ACN represents acetonitrile; ar represents argon; CDCl3Represents deuterated chloroform; CD (compact disc)3OD represents deuterated methanol; (COCl)2Represents oxalyl chloride; DCM represents dichloromethane; DIPEA stands for diisopropylethylamine; diox or Dioxane represents 1, 4-Dioxane; DMF represents dimethylformamide; DMSO represents dimethyl sulfoxide; EA or EtOAc stands for ethyl acetate; EtOH stands for ethanol; h represents hour; h2Represents hydrogen; HOAc represents acetic acid; k2CO3Represents potassium carbonate; KI represents potassium iodide; k3PO4Represents potassium phosphate; LC-MS stands for liquid-mass spectrometry; LiOH represents lithium hydroxide; mL represents mL; MeOH represents methanol; MgCl2Represents magnesium chloride; min represents min; MS represents mass spectrum; NaBH (OAc)3Represents sodium triacetoxyborohydride; NaH represents sodium hydride; NaNO2Represents sodium nitrite; na (Na)2SO4Represents sodium sulfate; NMR stands for nuclear magnetic resonance; pd2(dba)3Represents tris (dibenzylideneacetone) dipalladium; PE represents petroleum ether; SOCl2Represents thionyl chloride;t-BuONa represents sodium tert-butoxide; TEA for triethylamine; THF represents tetrahydrofuran; toluene stands for Toluene; TsCl represents p-toluenesulfonyl chloride; xantphos stands for 4, 5-bisdiphenylphosphine-9, 9-dimethylxanthene.
Detailed Description
Example 1: compound 1
The synthetic route is as follows:
step 1: synthesis of Compound 1-1
Dissolving 3-hydroxymethyl piperazine-1-carboxylic acid tert-butyl ester (1.0g,4.63mmol) and 1, 2-difluoro-4-nitrobenzene (809mg,5.1mmol) in DMF (20mL), adding DIPEA (1.8g,13.89mmol), heating to 120 ℃ for reaction overnight, monitoring the reaction by LC-MS, adding water (100mL) into the reaction system, extracting with EA (50mL × 2), combining organic phases, washing the organic phase with saturated saline (50mL), and removing anhydrous Na2SO4Drying, concentration of the filtrate and column chromatography of the residue (PE/EA: 10/1to 5/1) gave the compound as a yellow solid (600mg, 60% yield), ESI-MS M/z:356.1[ M + H ], (ESI-MS M/z)]+。
Step 2: synthesis of Compound 1-2
Dissolving compound 1-1((3.6g,10mmol) in DMF (30mL), adding NaH (60% content, 440mg,11mmol) in a salt-ice bath, heating to 80 ℃ for reaction overnight, monitoring the reaction by LC-MS, cooling, pouring into ice water (100mL), extracting with EA (50mL 2), combining organic phases, washing the organic phases with water (150mL 2), washing with saturated saline (50mL), and removing anhydrous Na2SO4Drying, concentrating the filtrate, and column chromatography of the residue (PE/EA: 20/1to 10/1) gave the compound as a yellow solid (2.1g, 62% yield), ESI-MS M/z:336.1[ M + H ]/]+。
And step 3: synthesis of Compounds 1-3
Compound 1-2(2.0g,6.0mmol) was dissolved in EA (40mL), HCl/dioxane solution (4.0M,10mL) was added, r.t. stirred for 3H, LC-MS monitored for reaction completion, concentrated directly to give crude yellow solid (2.0g, 100% yield) which was not purified and directly charged to the next reaction, ESI-MS M/z:236.1[ M + H ]: 236.1]+。
And 4, step 4: synthesis of Compounds 1-4
The crude product 1-3(2.0g,6.0mmol) obtained in the above step was suspended in diglyme (20mL), and 2-chloro-5-fluoropyrimidine (875mg,6.6mmol), anhydrous K, was added2CO3(4.15g,30mmol), heating to 100 ℃ for 6H, monitoring the reaction by LC-MS, cooling, filtering, pulping the obtained filter cake with cold water (10mL), filtering, washing the obtained filter cake with water and PE, drying to obtain yellow solid (1.6g, yield 80%), ESI-MS M/z:332.1[ M + H ]]+。
And 5: synthesis of Compounds 1-5
The crude product 1-4(1.6g,4.8mmol) from the previous step was dissolved in MeOH (20mL), Pd/C (10%, 200mg) was added and the reaction was allowed to proceed overnight at r.t., LC-MS monitored completion of the reaction, filtered, and the filtrate was concentrated to give a pale yellow solid (1.1g, yield 79%), ESI-MS M/z:302.1[ M + H ])]+。
Step 6: synthesis of Compound 1
Dissolving the crude product 1-5(300mg,1mmol) obtained in the previous step in DCM (20mL), adding TEA (202mg,2.0mmol), protecting with Ar, cooling to 0 ℃ in ice salt bath, dropwise adding a DCM solution of 2- (1, 5-dimethyl-3-phenyl-1H-pyrrol-2-yl) -2-oxoacetyl chloride (see WO2009130481,314mg,1.2mmol for synthesis), reacting for 30min at r.t., monitoring the reaction by LC-MS, quenching with ice water, separating, extracting the aqueous phase with DCM (20mL x 2), combining the organic phases, and adding anhydrous Na2SO4Drying, filtration, concentration of the filtrate and column chromatography of the residue (DCM/MeOH 100/1to 20/1) gave a light yellow solid (260mg, 49% yield).
1H NMR(400MHz,DMSO-d6)δ:10.25(s,1H),8.79(s,2H),7.55-7.43(m,5H),7.17-7.08(m,2H),6.79(d,J＝8.9Hz,1H),6.32(s,1H),4.58(dd,J＝12.1,1.5Hz,1H),4.21(d,J＝11.5Hz,1H),3.87(t,J＝9.8Hz,1H),3.78(s,3H),3.64(d,J＝11.6Hz,1H),2.96(t,J＝9.9Hz,1H),2.79(d,J＝12.1,2H),2.61-2.51(m,2H),2.19(s,3H)；ESI-MS m/z:527.2[M+H]+.
Two optical isomers of the compound 1 can be obtained by different chiral raw materials or chiral separation methods, and the structural formula is as follows:
example 2: compound 2
The synthetic route is as follows:
step 1: synthesis of Compound 2-1
Dissolving compound 1-3(705mg,3.0mmol), 2-bromo-4, 6-lutidine (670mg,3.6mmol), sodium tert-butoxide (721mg,7.5mmol), BINAP (187mg,0.3mmol) in Toluene (50mL), heating to 100 deg.C under Ar protection for reaction overnight, monitoring reaction by LC-MS, filtering, concentrating the filtrate, purifying by column chromatography (PE/EA: 10/1to 2/1) to obtain yellow solid (360mg, yield 35%), ESI-MS M/z:341.1[ M + H ])]+。
Step 2: synthesis of Compound 2-2
The crude product from the above step, 2-1(360mg,1.06mmol), was dissolved in MeOH (20mL), Pd/C (10%, 50mg) was added, and H was bubbled through2The reaction was carried out overnight at r.t., LC-MS monitored completion of the reaction, filtered, and the filtrate was concentrated to give a crude product as a pale yellow solid (270mg, yield 82%), ESI-MS M/z 311.1[ M + H ]]+。
And step 3: synthesis of Compound 2
Dissolving the crude product 2-2(250mg,0.8mmol) obtained in the above step in DCM (20mL), adding TEA (162mg,1.6mmol), protecting with Ar, cooling to 0 ℃ in ice salt bath, adding a solution of 2- (1, 5-dimethyl-3-phenyl-1H-pyrrol-2-yl) -2-oxoacetyl chloride (see synthesis WO2009130481,261mg,1mmol) in DCM dropwise, reacting for 30min at r.t., after the addition, monitoring the reaction by LC-MS, quenching the reaction with ice water, separating the liquid, extracting the aqueous phase with DCM (20mL x 2), combining the organic phases, and adding anhydrous Na2SO4Drying, filtering, concentrating the filtrate, and subjecting the residue to column chromatography (step (a) (B))CH2Cl2Purification with/MeOH 100/1to 20/1) afforded a light yellow solid (160mg, 37% yield).
1H NMR(400MHz,DMSO-d6)δ:10.20(s,1H),7.54-7.42(m,5H),7.16-7.06(m,2H),6.78(d,J＝8.9Hz,1H),6.66(s,1H),6.40(s,1H),6.25(s,1H),4.54(dd,J＝11.5,1.5Hz,1H),4.25(d,J＝11.5Hz,1H),3.89(t,J＝9.8Hz,1H),3.76(s,3H),3.60(d,J＝11.6Hz,1H),2.9(t,J＝9.9Hz,1H),2.76(d,J＝11.9Hz,2H),2.65-2.50(m,5H),2.45(s,3H),2.19(s,3H)；ESI-MS m/z:536.2[M+H]+.
Two optical isomers of the compound 2 can be obtained by different chiral raw materials or chiral separation methods, and the structural formula is as follows:
example 3: compound 3
Compound 3 was obtained from 2-bromo-6-methylpyridine instead of 2-bromo-4, 6-dimethylpyridine using a synthesis method similar to that of example 2.
1H NMR(400MHz,DMSO-d6)δ:10.22(s,1H),7.56-7.41(m,6H),7.15(s,1H),7.04(d,J＝8.9Hz,1H),6.77(d,J＝8.9Hz,1H),6.67(d,J＝8.9Hz,1H),6.41(d,J＝8.9Hz,1H),6.24(s,1H),4.55(dd,J＝11.5,1.5Hz,1H),4.26(d,J＝11.5Hz,1H),3.88(t,J＝9.8Hz,1H),3.80(s,3H),3.63(d,J＝11.6Hz,1H),2.95(t,J＝9.9Hz,1H),2.77(d,J＝11.7Hz,2H),2.62-2.51(m,2H),2.45(s,3H),2.19(s,3H)；ESI-MS m/z:522.2[M+H]+.
Example 4: compound 4
Compound 4 was obtained using 2-chloropyrimidine instead of 2-chloro-5-fluoropyrimidine as the starting material, and by a synthesis method similar to that in example 1.
1H NMR(400MHz,DMSO-d6)δ:10.23(s,1H),8.50(d,J＝9.3Hz,2H),7.56-7.43(m,5H),7.13(s,1H),7.02(d,J＝8.8Hz,1H),6.87-6.80(m,2H),6.25(s,1H),4.52(dd,J＝11.0,1.5Hz,1H),4.23(d,J＝11.2Hz,1H),3.86(t,J＝9.8Hz,1H),3.81(s,3H),3.62(d,J＝11.5Hz,1H),2.96(t,J＝9.9Hz,1H),2.80(d,J＝11.7Hz,2H),2.65-2.53(m,2H),2.19(s,3H)；ESI-MS m/z:509.2[M+H]+.
Example 5: compound 5
Compound 5 was obtained by a synthesis method similar to that of example 2 using 2-bromopyridine instead of 2-bromo-4, 6-dimethylpyridine as a starting material.
1H NMR(400MHz,DMSO-d6)δ:10.22(s,1H),8.12(d,J＝9.5Hz,1H),7.56-7.41(m,6H),7.15(s,1H),7.04(d,J＝8.9Hz,1H),6.83-6.73(m,2H),6.63(d,J＝8.9Hz,1H),6.24(s,1H),4.53(dd,J＝11.2,1.5Hz,1H),4.25(d,J＝11.3Hz,1H),3.87(t,J＝9.8Hz,1H),3.79(s,3H),3.62(d,J＝11.0Hz,1H),2.96(t,J＝9.9Hz,1H),2.78(d,J＝11.7Hz,2H),2.62-2.53(m,2H),2.18(s,3H)；ESI-MS m/z:508.2[M+H]+.
Example 6: compound 6
The synthetic route is as follows:
step 1: synthesis of Compound 6-1
Dissolving compound 1-3(705mg,3.0mmol), isobutyraldehyde (325mg,4.5mmol) in 1, 2-dichloroethane (30mL), adding HOAc, stirring r.t. for 1h, adding NaBH (OAc)3In r atT. reaction overnight, LC-MS monitor reaction complete, dilute with DCM, dilute with saturated aq NaHCO3Washed with water, separated, the organic phase concentrated and the residue purified by column chromatography (DCM/MeOH: 100/1to 20/1) to give a yellow solid (350mg, 40% yield), ESI-MS M/z:292.1[ M + H ], (ESI-MS M/z)]+。
Step 2: synthesis of Compound 6-2
The crude product 6-1(300mg,1.03mmol) from the previous step was dissolved in MeOH (20mL), Pd/C (10%, 60mg) was added, and H was bubbled through2The reaction was carried out overnight at r.t., LC-MS monitored completion of the reaction, filtered, and the filtrate was concentrated to give a pale yellow solid (200mg, yield 74%), ESI-MS M/z:262.1[ M + H ]]+。
And step 3: synthesis of Compound 6
Dissolving the crude product 6-2(200mg,0.76mmol) obtained in the previous step in DCM (20mL), adding TEA (162mg,1.6mmol), Ar protection, ice salt bath to 0 ℃, dropwise adding a DCM solution of 2- (1, 5-dimethyl-3-phenyl-1H-pyrrole-2-yl) -2-oxoacetyl chloride (see WO2009130481,260mg,1mmol for synthesis), reacting for 30min at r.t., LC-MS monitoring the reaction, adding ice water to quench the reaction, separating liquid, extracting the aqueous phase with DCM (20mL x 2), combining the organic phases, and adding anhydrous Na2SO4Drying, filtration, concentration of the filtrate and column chromatography of the residue (DCM/MeOH 100/1to 20/1) gave a light yellow solid (120mg, yield 32%).
1H NMR(400MHz,DMSO-d6)δ:10.25(s,1H),7.54-7.42(m,5H),7.11(s,1H),7.03(d,J＝9.5Hz,1H),6.78(d,J＝9.4Hz,1H),6.25(s,1H),4.54(dd,J＝11.5,1.5Hz,1H),4.25(d,J＝11.5Hz,1H),3.89(s,3H),3.21-3.15(m,1H),2.96(t,J＝9.9Hz,1H),2.76(d,J＝11.9Hz,2H),2.61-2.50(m,2H),2.19(s,3H),2.09-2.00(m,2H),1.65-1.55(m,2H),0.91(ss,6H)；ESI-MS m/z:487.2[M+H]+.
Example 7: compound 7
Compound 7 was obtained by a synthesis method similar to that in example 6 using cyclopropanecarbaldehyde instead of isobutyraldehyde as a raw material.
1H NMR(400MHz,DMSO-d6)δ:10.23(s,1H),7.55-7.43(m,5H),7.12(s,1H),7.02(d,J＝9.5Hz,1H),6.79(d,J＝9.4Hz,1H),6.24(s,1H),4.53(dd,J＝11.5,1.5Hz,1H),4.23(d,J＝11.5Hz,1H),3.87(s,3H),3.21-3.13(m,1H),2.95(t,J＝9.9Hz,1H),2.74(d,J＝11.9Hz,2H),2.61-2.52(m,2H),2.18(s,3H),2.09-2.01(m,2H),1.63-1.53(m,1H),1.15-1.23(m,1H),0.55-0.45(m,2H),0.32-0.23(m,2H)；ESI-MS m/z:485.2[M+H]+.
Example 8: compound 8
Compound 8 was obtained by a synthesis method similar to that in example 6 using pivalaldehyde instead of isobutyraldehyde as a raw material.
1H NMR(400MHz,DMSO-d6)δ:10.24(s,1H),7.54-7.43(m,5H),7.10(s,1H),7.01(d,J＝9.5Hz,1H),6.77(d,J＝9.4Hz,1H),6.25(s,1H),4.52(dd,J＝11.5,1.5Hz,1H),4.24(d,J＝11.5Hz,1H),3.86(s,3H),3.20-3.12(m,1H),2.92(t,J＝9.9Hz,1H),2.72(d,J＝11.9Hz,2H),2.60-2.49(m,2H),2.17(s,3H),2.10-2.01(m,2H),1.65-1.52(m,1H),1.15-1.02(m,9H)；ESI-MS m/z:501.2[M+H]+.
Example 9: compound 9
Compound 9 was obtained from 2,4, 5-trifluoronitrobenzene instead of 3, 4-difluoronitrobenzene by a synthesis method similar to that of example 1.
1H NMR(400MHz,DMSO-d6)δ:10.28(s,1H),8.78(s,2H),7.53-7.42(m,5H),7.06(s,1H),6.93(d,J＝10.2Hz,1H),6.30(s,1H),4.57(dd,J＝11.1,1.5Hz,1H),4.21(d,J＝11.5Hz,1H),3.86(t,J＝9.7Hz,1H),3.79(s,3H),3.65(d,J＝11.6Hz,1H),2.95(t,J＝9.9Hz,1H),2.78(d,J＝12.1,2H),2.61-2.52(m,2H),2.19(s,3H)；ESI-MS m/z:545.2[M+H]+.
Example 10: compound 10
Compound 10 was obtained from 2-nitro-4, 5-difluorotoluene as the starting material instead of 3, 4-difluoronitrobenzene by a synthesis method similar to that of example 1.
1H NMR(400MHz,DMSO-d6)δ:10.26(s,1H),8.78(s,2H),7.53-7.43(m,5H),7.03(s,1H),6.87(s,1H),6.26(s,1H),4.57(dd,J＝11.1,1.5Hz,1H),4.21(d,J＝11.5Hz,1H),3.86(t,J＝9.7Hz,1H),3.79(s,3H),3.65(d,J＝11.6Hz,1H),2.95(t,J＝9.9Hz,1H),2.78(d,J＝12.1,2H),2.61-2.50(m,2H),2.19(s,3H),2.11(s,3H)；ESI-MS m/z:541.2[M+H]+.
Example 11: compound 11
Compound 11 was obtained from 2-nitro-4, 5-difluoroanisole instead of 3, 4-difluoronitrobenzene as the starting material by a synthesis method similar to that of example 1.
1H NMR(400MHz,DMSO-d6)δ:10.25(s,1H),8.77(s,2H),7.53-7.42(m,5H),7.09(s,1H),6.55(s,1H),6.26(s,1H),4.58(dd,J＝11.2,1.5Hz,1H),4.22(d,J＝11.5Hz,1H),3.87-3.82(m,4H),3.79(s,3H),3.65(d,J＝11.5Hz,1H),2.95(t,J＝9.5Hz,1H),2.78(d,J＝11.6,2H),2.62-2.50(m,2H),2.17(s,3H)；ESI-MS m/z:557.2[M+H]+.
Example 12: compound 12
The synthetic route is as follows:
step 1: synthesis of Compound 12-1
Dissolving tert-butyl 4- (2-fluoro-4-nitrobenzene) -3- (hydroxymethyl) piperazine-1-carboxylate (3.55g,10mmol) in DCM (50mL), adding DIPEA (2.6g,20mmol), adding TsCl (2.3g,12mmol), stirring r.t. after the addition is finished, reacting overnight, monitoring by LC-MS, adding into water (50mL), separating, extracting the water layer with DCM (30mL), combining the organic phases, washing the organic phase with water (50mL), washing with saturated saline (50mL), and washing with anhydrous Na2SO4Drying, filtration, concentration of the filtrate and column chromatography of the residue (PE/EA: 20/1to 5/1) gave a pale yellow gum (4.0g, 78% yield), ESI-MS M/z:510.1[ M + H ]/]+。
Step 2: synthesis of Compound 12-2
Compound 12-1(1.4g,2.75mmol) was dissolved in EtOH (20mL), methylamine alcohol solution (25% -30%, 1.8g, ca.55mmol) was added and reacted in a sealed tube at 80 ℃ overnight, LC-MS monitored completion of the reaction, concentrated, and the residue was purified by column chromatography (PE/EA: 5/1to 1/1) to give a yellow gum (480mg, 50% yield), ESI-MS M/z:349.1[ M + H ]/(M/Z)]+。
And step 3: synthesis of Compound 12-3
Compound 12-2(3.48g,10.0mmol) was dissolved in EA (50mL), HCl/dioxane (4.0M,15mL) was added, stirring was carried out at r.t. for 3H, LC-MS monitored reaction completion, direct concentration to give yellow solid compound (3.5g, 100% yield) which was taken to the next reaction without purification, ESI-MS M/z:249.1[ M + H ], (yield: 100.1)]+。
And 4, step 4: synthesis of Compound 12-4
The crude product 12-3(2.1g,6.0mmol) obtained in the above step was suspended in diglyme (20mL), and 2-chloro-5-fluoropyrimidine (875mg,6.6mmol), anhydrous K, was added2CO3(4.15g,30mmol), heating to 100 ℃ for 6H, monitoring the reaction by LC-MS, cooling, filtering, pulping the obtained filter cake with cold water (10mL), filtering, washing the obtained filter cake with water and PE, drying to obtain yellow solid (1.5g, yield 72%), ESI-MS M/z:345.1[ M + H ]]+。
And 5: synthesis of Compounds 12-5
Will be at the topThe crude product 12-4 from step (1.5g,4.36mmol) was dissolved in methanol (20mL), Pd/C (10%, 200mg) was added, and H was bubbled through2The reaction was carried out overnight at r.t., LC-MS monitored completion of the reaction, filtered, and the filtrate was concentrated to give a pale yellow solid (1.0g, yield 73%), ESI-MS M/z:315.1[ M + H ]]+。
Step 6: synthesis of Compound 12
Dissolving the crude product 12-5(167mg,0.5mmol) obtained in the previous step in DCM (15mL), adding TEA (101mg,1.0mmol), protecting with Ar, cooling to 0 ℃ in ice salt bath, dropwise adding 2- (1, 5-dimethyl-3-phenyl-1H-pyrrol-2-yl) -2-oxoacetyl chloride (see WO2009130481,167mg,0.6mmol for synthesis), stopping adding, reacting for 30min at r.t., monitoring the reaction by LC-MS, quenching with ice water, separating, extracting the aqueous phase with DCM (20mL x 2), combining the organic phases, and adding anhydrous Na2SO4Drying, filtration, concentration of the filtrate and column chromatography of the residue (DCM/MeOH 100/1to 20/1) gave a light yellow solid (100mg, 37% yield).
1H NMR(400MHz,DMSO-d6)δ:10.25(s,1H),8.76(s,2H),7.55-7.43(m,5H),6.71-6.65(m,3H),6.25(s,1H),3.86(s,3H),3.64(d,J＝12.3Hz,1H),3.22-3.11(m,2H),3.02(d,J＝10.1Hz,2H),2.97-2.81(m,3H),2.75-2.65(m,4H),2.19(s,3H)；ESI-MS m/z:540.2[M+H]+.
Two optical isomers of compound 12 can be obtained by different chiral raw materials or chiral separation methods, and the structural formula is as follows:
example 13: compound 13
The synthetic route is as follows:
step 1: synthesis of Compound 13-1
Dissolving compound 12-3(745mg,3.0mmol), 2-bromo-4, 6-lutidine (670mg,3.6mmol), sodium tert-butoxide (721mg,7.5mmol), BINAP (187mg,0.3mmol) in Toluene (50mL), heating to 100 ℃ under Ar protection for reaction overnight, monitoring reaction by LC-MS, filtering, concentrating the filtrate, purifying by column chromatography (PE/EA: 10/1to 3/1) to obtain yellow solid (300mg, yield 28%), ESI-MS M/z:354.1[ M + H ])]+。
Step 2: synthesis of Compound 13-2
The compound 13-1(300mg,0.85mmol) from the previous step was dissolved in MeOH (20mL), Pd/C (10%, 60mg) was added, and H was bubbled through2The reaction was carried out overnight at r.t., LC-MS monitored completion of the reaction, filtered, and the filtrate was concentrated to give a pale yellow solid (200mg, yield 72%), ESI-MS M/z:324.1[ M + H ]]+。
And step 3: synthesis of Compound 13
Dissolving the crude product 13-2(200mg,0.62mmol) obtained in the previous step in DCM (20mL), adding TEA (132mg,1.3mmol), protecting with Ar, cooling to 0 ℃ in ice salt bath, adding a DCM solution of 2- (1, 5-dimethyl-3-phenyl-1H-pyrrol-2-yl) -2-oxoacetyl chloride (see WO2009130481,261mg,1mmol) dropwise, reacting for 30min at r.t. after the addition is finished, monitoring the reaction by LC-MS, quenching the reaction with ice water, separating the liquid, extracting the aqueous phase with DCM (20mL x 2), combining the organic phases, and adding anhydrous Na2SO4Drying, filtration, concentration of the filtrate and column chromatography of the residue (DCM/MeOH 100/1to 20/1) gave a light yellow solid (100mg, yield 29%).
1H NMR(400MHz,DMSO-d6)δ:10.22(s,1H),7.54-7.42(m,5H),6.75-7.68(m,4H),6.43(s,1H),6.25(s,1H),3.85(s,3H),3.65(d,J＝11.8Hz,1H),3.20-3.10(m,2H),3.01(d,J＝9.8Hz,2H),2.97-2.81(m,3H),2.75-2.65(m,4H),2.50(s,3H),2.46(s,3H),2.19(s,3H)；ESI-MS m/z:549.2[M+H]+.
Two optical isomers of compound 13 can be obtained by different chiral raw materials or chiral separation methods, and the structural formula is as follows:
example 14: compound 14
The synthetic route is as follows:
step 1: synthesis of Compound 14-1
Dissolving 5-methyl-3-phenyl-1H-pyrrole-2, 4-dicarboxylic acid diethyl ester (6g,20mmol) in THF (50mL), cooling to 0 ℃ in an ice salt bath, adding NaH (1.2g,30mmol, 60%) in portions, recovering r.t. stirring for 1H, cooling to 0 ℃ again, adding MeI (8.5g,60mmol), reacting overnight at r.t., LC-MS monitoring reaction completion, quenching reaction with cold dilute hydrochloric acid (pH about 7-8), concentrating, adding DCM (80mL) to the residue, separating, extracting the aqueous phase with DCM (50mL x 2), combining the organic phases, washing the organic phase with water (100mL), washing with saturated saline (100mL), and removing anhydrous Na2SO4Drying, filtering, concentrating the filtrate to obtain light yellow solid (5.9g, yield 90%), directly feeding into the next reaction, ESI-MS M/z:330.1[ M + H ]]+。
Step 2: synthesis of Compound 14-2
Dissolving 14-1(5.9g,18mmol) in EtOH (100mL), adding NaOH (4.32g,108mmol) in water (100mL), heating to reflux overnight, monitoring the reaction by LC-MS, removing EtOH by rotary evaporation, adjusting pH to about 2 with concentrated hydrochloric acid under ice salt bath, precipitating solid, stirring for 1H, filtering, washing filter cake with water, washing with PE, drying to obtain light yellow solid (3.4g, yield 70%), directly using the crude product in the next step, ESI-MS M/z:274.1[ M + H ], [ ESI-MS M/z [/M + H ], []+。
And step 3: synthesis of Compound 14-3
Suspending 14-2(5.8g,21.2mmol) in ethanolamine (15mL), heating to 175 ℃ under the protection of Ar, reacting for about 1h, and monitoring by LC-MSAfter completion of the reaction, the reaction mixture was cooled, diluted with water (30mL), extracted with EA (20 mL. times.2), the organic phases were combined, washed with water (20mL) and brine (20mL), dried, concentrated, and the residue was subjected to neutral alumina column chromatography (PE/EA: 10/1to 2/1) to give an off-white solid (2.8g, yield 71%), ESI-MS M/z:186.1[ M + H ] (M + H): 2/1)]+。
And 4, step 4: synthesis of Compound 14-4
14-3(556mg,3mmol) was dissolved in DCM (10mL), cooled to 0 ℃ in an ice-salt bath under Ar protection, and added dropwise (COCl)2(419mg,3.3mmol), after addition, the reaction was carried out at r.t. for about 1h, and upon monitoring completion by LC-MS, concentration gave a tan oil (248mg, yield 90%). Directly used for the next reaction.
And 5: synthesis of Compound 14
Dissolving compound 1-5(300mg,1mmol) in DCM (20mL), adding TEA (202mg,2.0mmol), protecting with Ar, cooling to 0 deg.C with ice salt bath, adding 14-4(331mg,1.2mmol), reacting for 30min at r.t., monitoring reaction completion with LC-MS, quenching with ice water, separating, extracting water phase with DCM (20 mL. times.2), mixing organic phases, and adding anhydrous Na2SO4Drying, filtration, concentration of the filtrate and column chromatography of the residue (DCM/MeOH 100/1to 20/1) gave a light yellow solid (270mg, 50% yield).
1H NMR(400MHz,DMSO-d6)δ:10.26(s,1H),8.79(s,2H),7.55-7.43(m,5H),7.17-7.08(m,2H),6.79(d,J＝9.2Hz,1H),6.32(s,1H),4.57(dd,J＝12.1,1.5Hz,1H),4.25-4.15(m,3H),3.87(t,J＝9.8Hz,1H),3.64(d,J＝11.6Hz,1H),2.96(t,J＝9.9Hz,1H),2.76(d,J＝12.1,2H),2.62-2.52(m,2H),2.18(s,3H),1.22(t,3H)；ESI-MS m/z:541.2[M+H]+.
Example 15: compound 15
Using bromoisobutane as a raw material instead of iodoethane, compound 15 was obtained using a synthesis method similar to that of example 14.
1H NMR(400MHz,DMSO-d6)δ:10.25(s,1H),8.78(s,2H),7.55-7.43(m,5H),7.15-7.06(m,2H),6.78(d,J＝9.2Hz,1H),6.28(s,1H),4.57(dd,J＝12.1,1.5Hz,1H),4.25-4.15(m,3H),3.86(t,J＝9.8Hz,1H),3.64(d,J＝11.6Hz,1H),2.96(t,J＝9.9Hz,1H),2.76(d,J＝12.1,2H),2.57-2.48(m,2H),2.18(s,3H),2.02-1.98(m,1H),1.12(ss,6H)；ESI-MS m/z:569.2[M+H]+.
Example 16: compound 16
Compound 16 was obtained by a synthesis method similar to that of example 14 using 2-bromoethyl methyl ether instead of iodoethane as a raw material.
1H NMR(400MHz,DMSO-d6)δ:10.27(s,1H),8.78(s,2H),7.55-7.43(m,5H),7.17-7.05(m,2H),6.78(d,J＝9.8Hz,1H),6.32(s,1H),4.56-4.45(m,2H),4.25-4.15(m,2H),3.87(t,J＝9.8Hz,1H),3.65-3.54(m,3H),3.32(s,3H),2.96(t,J＝9.9Hz,1H),2.75(d,J＝11.8,2H),2.61-2.51(m,2H),2.18(s,3H)；ESI-MS m/z:571.2[M+H]+.
Example 17: compound 17
The synthetic route is as follows:
step 1: synthesis of Compound 17-1
2-Furancarboxylic acid (11.2g,0.1mol) was dissolved in DCM (150mL) and SOCl was added2(36mL,0.5mol) was reacted overnight at r.t. and, upon completion of the reaction monitored by LC-MS, concentrated to give a light brown gum (13g, 100% yield) which was used directly in the next reaction.
Step 2: synthesis of Compound 17-2
Adding potassium monoethyl malonate (1)3.4g,78.5mmol) was dissolved in ACN (80mL), TEA (11.7mL,84.3mmol) was added at about 10 deg.C, anhydrous MgCl was added2(9.12g,95.8mmol), reaction at r.t. for 2.5H, cooling to 0 ℃, dropwise adding 17-1(5g,38.3mmol) of ACN (30mL), reaction at r.t. overnight, LC-MS monitoring reaction completion, concentrating, heating and refluxing the residue Toluene to dissolve, cooling, treating with 13% diluted hydrochloric acid (50mL) at about 0-5 ℃, stirring for about 15min, separating, washing the organic phase with diluted hydrochloric acid (50mL 2), water (25mL 2), concentrating, subjecting the residue to column chromatography (PE/EA 10/1to 4/1) to obtain a gray yellow solid (5g, yield 72%), ESI-MS M/z 183.1[ M + H ])]+。
And step 3: synthesis of Compound 17-3
Adding 17-2(9.1g,50mmol) solution HOAc (25mL), keeping at 0-5 ℃, and slowly dropwise adding NaNO2(4.5g,65mmol) of aqueous solution (30mL) for about 1h, separating out solid in the process of dropwise adding, recovering r.t. stirring for about 30min after dropwise adding, adding water (200mL) and continuing stirring for about 30min, monitoring the reaction completion by LC-MS, filtering, extracting filtrate with DCM (50mL x 2), combining organic phases, washing the organic phase with water (50mL x 2), washing with saturated saline (50mL x 2), and removing anhydrous Na2SO4Drying, filtration and concentration of the filtrate gave a pale yellow solid (7g, 66% yield), ESI-MS M/z 212.1[ M + H ]]+。
And 4, step 4: synthesis of Compound 17-4
Dissolving acetyl EA (7.25g,56mmol), zinc powder (9.8g, 151mmol) and NaOAc (10.2g,121mmol) in HOAc, heating to 60 ℃, adding 7-3(10.6g,50mmol) HOAc solution in three batches under vigorous stirring, rapidly increasing the temperature to about 90 ℃ during the addition, maintaining the temperature at 60-75 ℃ for reaction for 3h, supplementing zinc powder (4.9g,75mmol), continuing the reaction for about 1h, monitoring the reaction by LC-MS, cooling, filtering, concentrating the filtrate, carrying away residual HOAc by Toluene azeotropy, adding water (200mL) and EA (50mL), stirring, separating, extracting the water phase with EA (30mL, 2), combining the organic phases, washing the organic phase with sodium bicarbonate solution (100mL, 2) and water (100mL, saturated saline water (100mL, 2) and washing the organic phase with anhydrous Na 22SO4Drying, filtering, concentrating the filtrate, slurrying the residue with DCM/PE (1/6,15mL), filtering to give a pale yellow solidBody (5.8g, yield 40%), ESI-MS M/z 292.1[ M + H ]]+。
And 5: synthesis of Compound 17-5
Dissolving 17-4(5.8g,20mmol) in THF (50mL), cooling to 0 ℃ in an ice salt bath, adding NaH (1.2g,30mmol) in portions, recovering r.t. after the addition, stirring for 1h, cooling to 0 ℃ again, adding MeI (8.5g,60mmol), reacting overnight at r.t. after the addition is finished, monitoring by LC-MS (LC-MS) for reaction completion, quenching reaction by cold dilute hydrochloric acid (pH is about 7-8), concentrating, adding DCM (80mL) into residue, separating, extracting an aqueous phase by DCM (50mL 2), combining organic phases, washing the organic phase by water (100mL), saturated saline water (100mL), anhydrous Na (anhydrous)2SO4Drying, filtering, concentrating the filtrate to obtain light yellow solid (5.5g, yield 90%), directly feeding into the next reaction, ESI-MS M/z:306.1[ M + H ]]+。
Step 6: synthesis of Compound 17-6
Dissolving 17-5(5.5g,18mmol) in EtOH (100mL), adding NaOH (4.32g,108mmol) in water (100mL), heating and refluxing overnight, monitoring the reaction by LC-MS, removing EtOH by rotary evaporation, adjusting pH to about 2 with concentrated hydrochloric acid under ice salt bath, precipitating solid, stirring for 1H, filtering, washing filter cake with water and PE, drying to obtain pale yellow solid (2.5g, yield 55%), directly using the crude product in next reaction, ESI-MS M/z:250.1[ M + H ], (ESI-MS M/z:250.1[ (. M + H) ]]+。
And 7: synthesis of Compound 17-7
Suspending 17-6(2.5g,10mmol) in ethanolamine (10mL), heating to 175 ℃ under Ar protection, reacting for about 1H, monitoring by LC-MS for completion of the reaction, cooling, diluting the reaction solution with water (30mL), extracting with EA (20 mL. multidot.2), combining the organic phases, washing the organic phases with water (20mL), washing with saturated saline (20mL), drying, concentrating, and subjecting the residue to neutral alumina column chromatography (PE/EA: 10/1to 4/1) to obtain a pale yellow solid (805mg, 50% yield) ESI-MS M/z:162.1[ M + H ] +.
And 8: synthesis of Compounds 17-8
17-7(805mg,5mmol) was dissolved in DCM (10mL) and ice-salted at 0 ℃ under Ar protection, oxalyl chloride (700mg,5.5mmol) was added dropwise, after addition, the reaction was r.t. for about 1h, and LC-MS monitored completion of the reaction and concentrated to give a tan oil (1.13g, yield 90%) which was used directly in the next reaction.
And step 9: synthesis of Compound 17
Dissolving compound 1-5(300mg,1mmol) in DCM (20mL), adding TEA (202mg,2.0mmol), Ar protection, cooling to 0 ℃ in ice salt bath, adding a DCM solution of 2- (3- (furan-2-yl) -1, 5-dimethyl-1H-pyrrolin-2-yl) -2-oxoacetyl chloride (17-8,300mg,1.2mmol), reacting for 30min at r.t. after the addition is finished, monitoring the reaction by LC-MS, quenching the reaction by adding ice water, separating liquid, extracting an aqueous phase by DCM (20mL x 2), combining organic phases, and anhydrous Na2SO4Drying, filtration, concentration of the filtrate and column chromatography (DCM/MeOH 100/1to 20/1) afforded a light yellow solid (200mg, 39% yield).
1H NMR(400MHz,DMSO-d6)δ:10.25(s,1H),8.79(s,2H),7.72(s,1H),7.17-7.08(m,3H),6.76-6.68(m,2H),6.18(s,1H),4.56(dd,J＝11.3,1.5Hz,1H),4.20(d,J＝11.5Hz,1H),3.87(t,J＝9.8Hz,1H),3.78(s,3H),3.64(d,J＝11.6Hz,1H),2.96(t,J＝9.9Hz,1H),2.78(d,J＝12.1,2H),2.61-2.53(m,2H),2.16(s,3H)；ESI-MS m/z:517.2[M+H]+.
Example 18: compound 18
Compound 18 was obtained by a synthesis method similar to that in example 17 using 3-thiophenecarboxylic acid instead of 2-furancarboxylic acid as a starting material.
1H NMR(400MHz,DMSO-d6)δ:10.27(s,1H),8.79(s,2H),7.95(d,J＝2.3Hz,1H),7.85(dd,J＝11.5,2.3Hz,1H),7.38(dd,J＝11.3,2.4Hz,1H),7.17-7.08(m,2H),6.76(d,J＝11.2Hz,1H),6.22(s,1H),4.56(dd,J＝11.3,1.5Hz,1H),4.20(d,J＝11.5Hz,1H),3.87(t,J＝9.8Hz,1H),3.78(s,3H),3.66(d,J＝11.6Hz,1H),2.95(t,J＝9.9Hz,1H),2.77(d,J＝12.1,2H),2.61-2.52(m,2H),2.17(s,3H)；ESI-MS m/z:533.2[M+H]+.
Example 19: compound 19
Compound 19 was obtained by a synthesis method similar to that in example 17 using nicotinic acid instead of 2-furancarboxylic acid as a raw material.
1H NMR(400MHz,DMSO-d6)δ:10.28(s,1H),9.13(s,1H),8.79(s,2H),8.73(d,J＝11.5Hz,1H),8.42(d,J＝10.8Hz,1H),7.55-7.52(m,1H),7.18-7.07(m,2H),6.79(d,J＝11.2Hz,1H),6.21(s,1H),4.55(dd,J＝11.3,1.5Hz,1H),4.21(d,J＝11.5Hz,1H),3.86(t,J＝9.8Hz,1H),3.79(s,3H),3.67(d,J＝11.6Hz,1H),2.96(t,J＝8.9Hz,1H),2.76(d,J＝11.5,2H),2.60-2.50(m,2H),2.18(s,3H)；ESI-MS m/z:528.2[M+H]+.
Example 20: in vitro antifungal Activity (MIC) assay
The strains used in the experiment were inoculated on Sabouraud glucose agar medium, then cultured at 35 ℃ for 5 days, 1mL of 0.2% Tween 20 diluted with 0.85% sterile physiological saline was added to the cultured Sabouraud glucose agar, then the plate was shaken, the solution collected from the plate surface was transferred to a sterile tube, the resulting supernatant containing the fungus was transferred to a sterile tube, and sufficiently suspended to prepare a concentration of 0.4 to 106To 5 x 106CFU/mL strain dilution. The strain dilutions prepared were mixed at a ratio of 1: 100 ratio dilution in RPMI 1640 medium, and the biological suspension is added to the containing drug dilution plate in the hole, all plates at 35 degrees C were incubated for 24-48 hours, by monitoring each hole 485nm light to assess the strain growth. The MIC of a compound is defined as: the lowest drug concentration that inhibits growth of greater than 80% of the strains compared to the negative control without drug. A indicates a MIC value of greater than 0.1. mu.g/mL, B indicates a MIC value of greater than 0.01. mu.g/mL but less than or equal to 0.1. mu.g/mL, and C indicates a MIC value of less than 0.01. mu.g/mL.
TABLE 1 MIC values for antifungal Activity of Compounds (μ g/mL)
From the data in the table, compared with itraconazole which is an antifungal medicament applied clinically, the compound has stronger in-vitro antifungal activity, and is of great significance for developing novel antifungal medicaments.