WO2021248256A1 - 吡唑类化合物及其制备方法、用途和药物组合物 - Google Patents

吡唑类化合物及其制备方法、用途和药物组合物 Download PDF

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WO2021248256A1
WO2021248256A1 PCT/CN2020/094796 CN2020094796W WO2021248256A1 WO 2021248256 A1 WO2021248256 A1 WO 2021248256A1 CN 2020094796 W CN2020094796 W CN 2020094796W WO 2021248256 A1 WO2021248256 A1 WO 2021248256A1
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methyl
dcm
compound
water
mmol
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French (fr)
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许恒
陈晓光
林松文
季鸣
张敬博
杜婷婷
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中国医学科学院药物研究所
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/4151,2-Diazoles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P13/00Drugs for disorders of the urinary system
    • A61P13/12Drugs for disorders of the urinary system of the kidneys
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P37/00Drugs for immunological or allergic disorders
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P5/00Drugs for disorders of the endocrine system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D231/00Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D231/00Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D231/38Nitrogen atoms
    • C07D231/40Acylated on said nitrogen atom

Definitions

  • the invention belongs to the technical field of pharmacy, and relates to a pyrazole compound and a preparation method, use and pharmaceutical composition thereof.
  • STAT Signal Transducer and Activator of Transcription
  • STAT3 plays an important role in the occurrence and development of cancer, inflammation, ischemia/reperfusion injury and stem cell self-renewal.
  • STAT3 can be activated by receptor tyrosine kinases and non-receptor tyrosine kinases.
  • the receptor dimerizes and causes the phosphorylation of JAK kinase, which in turn phosphorylates the tyrosine residue (Tyr705) at the C-terminus of the STAT3 molecule, and dimerizes through its SH2 region. It is activated by the body and transferred to the nucleus to bind with specific DNA sequences to regulate the transcription of target genes.
  • Ser727 located in the transcriptional activation domain of Stat3 is further activated by the MAPK or mTOR pathway to regulate the transcriptional activity of Stat3, which is considered necessary for its complete activation.
  • the acetylation of Lys685 can stabilize Stat3 dimers and regulate Stat3 activity.
  • STAT3 inhibitors have entered the clinical research stage for tumor treatment and autoimmune diseases.
  • the STAT3 inhibitor napabucasin developed by Boston Biomedical Company was approved by the FDA as an orphan drug in June 2016 for the treatment of gastroesophageal junction cancer. It is currently in its III clinical trial stage; it was approved by the FDA as an orphan drug in November 2016.
  • pancreatic cancer it is currently in its III clinical trial stage.
  • Some STAT3 inhibitors are also undergoing various clinical trials.
  • the STAT3 inhibitor GLG-302 developed by GLG is in phase I clinical trials for the treatment of tumors and polycystic kidney disease; GLG-801 is used for the treatment of kidney disease Leukemia and psoriasis are in phase II clinical trials.
  • the STAT3 inhibitor MOL-4249 developed by Moleculin Biotechnology is used for the treatment of mild to moderate psoriasis and is currently in phase II clinical trials; Takeda's AK-114 is used for the treatment of ulcerative colitis, which is currently in phase II Clinical research stage.
  • Bt354 as an inhibitor of the STAT3 signaling pathway can be used to treat cancers such as triple-negative breast cancer.
  • STAT3 has become a very attractive drug target, but there is a need to develop safer and more effective STAT3 inhibitors for the prevention and/or treatment of tumors, autoimmune diseases, kidney diseases, cardiovascular diseases, inflammatory diseases, metabolism/ Endocrine dysfunction or neurological disease.
  • the technical problem solved by the present invention is to provide a new STAT3 signaling pathway inhibitor, its preparation method, pharmaceutical composition and application.
  • This type of STAT3 signaling pathway inhibitor is effective against tumor cells that highly express STAT, especially human prostate cancer cells DU. -145 has a strong inhibitory activity, which can better prevent diseases mediated by STAT3, such as tumors, autoimmune diseases, kidney diseases, cardiovascular diseases, inflammatory diseases, metabolic/endocrine dysfunction or neurological diseases And/or therapeutic effect.
  • the present invention provides the following technical solutions:
  • the first aspect of the technical solution of the present invention is to provide a compound represented by formula (I), its stereoisomer, geometric isomer, tautomer or pharmaceutically acceptable salt:
  • R 1 is selected from C 1-4 alkyl, C 3-6 cycloalkyl
  • R 2 is selected from: phenyl, wherein the phenyl group is substituted by Ra at the para position; 5-10 membered heteroaryl, wherein the 5-10 membered heteroaryl group is substituted by Ra; or with C 4-6 cycloalkene Or C 4-6 heterocyclic olefin fused phenyl group;
  • Ra is selected from: chlorine, methyl, ethyl, isopropyl, cyclopropyl, cyclobutyl, methoxy and ethoxy;
  • R 3 and R 4 are each independently selected from hydrogen, halogen, methyl, ethyl, and methoxy.
  • R 1 is selected from methyl, ethyl, n-propyl, isopropyl, cyclopropyl, cyclobutyl.
  • the present invention provides a compound represented by formula (I), its stereoisomer, geometric isomer, tautomer or pharmaceutically acceptable salt:
  • R 1 is selected from C 1-4 alkyl, C 3-6 cycloalkyl; preferably selected from methyl, ethyl, n-propyl, isopropyl, cyclopropyl, cyclobutyl;
  • R 2 is selected from:
  • Ra is selected from the following groups: chlorine, methyl, ethyl, isopropyl, cyclopropyl, cyclobutyl, methoxy and ethoxy;
  • R 3 and R 4 are each independently selected from hydrogen, halogen, methyl, ethyl, and methoxy.
  • Ra is selected from the group consisting of methyl, ethyl, cyclopropyl, methoxy and ethoxy.
  • the present invention provides a compound represented by formula (I), its stereoisomer, geometric isomer, tautomer or pharmaceutically acceptable salt:
  • R 1 is selected from C 1-4 alkyl, C 3-6 cycloalkyl; preferably selected from methyl, ethyl, n-propyl, isopropyl, cyclopropyl, cyclobutyl;
  • R 2 is selected from:
  • R 3 and R 4 are each independently selected from hydrogen, halogen, methyl, ethyl, and methoxy.
  • the present invention provides a compound represented by formula (I), its stereoisomer, geometric isomer, tautomer or pharmaceutically acceptable salt:
  • R 1 is selected from C 1-4 alkyl, C 3-6 cycloalkyl; preferably selected from methyl, ethyl, n-propyl, isopropyl, cyclopropyl, cyclobutyl;
  • R 2 is selected from phenyl, wherein the phenyl group is substituted by Ra at the para position; 5-10 membered heteroaryl, wherein the 5-10 membered heteroaryl group is substituted by Ra; or with C 4-6 cycloalkene or C 4-6 heterocyclic olefin fused phenyl group;
  • Ra is selected from: chlorine, methyl, ethyl, isopropyl, cyclopropyl, cyclobutyl, methoxy and ethoxy;
  • R 2 is selected from:
  • Ra is selected from the following groups: chlorine, methyl, ethyl, isopropyl, cyclopropyl, cyclobutyl, methoxy and ethoxy;
  • Ra is selected from the following groups: methyl, ethyl, cyclopropyl, methoxy and ethoxy;
  • R 2 is selected from:
  • R 3 and R 4 are each independently selected from hydrogen, halogen, methyl, ethyl, and methoxy.
  • R 3 and R 4 are each independently selected from hydrogen, chlorine, fluorine, methyl, and ethyl, and at least one of R 3 and R 4 is hydrogen.
  • R 3 is selected from methyl and R 4 is selected from hydrogen; or R 3 is selected from hydrogen and R 4 is selected from chlorine and fluorine.
  • the preferred compounds according to the present invention are as follows:
  • the second aspect of the technical scheme of the present invention is to provide a method for preparing the compound, its stereoisomers, geometric isomers, and tautomers, which includes the following steps:
  • the second aspect of the technical solution of the present invention also provides another method for preparing the compound, its stereoisomers, geometric isomers, and tautomers, which includes the following steps:
  • the third aspect of the technical solution of the present invention is to provide a pharmaceutical composition
  • a pharmaceutical composition comprising the compound, its stereoisomer, geometric isomer, tautomer or pharmaceutically acceptable salt , And optionally pharmaceutically acceptable carriers and/or excipients;
  • the pharmaceutical composition further comprises in addition to the compound, its stereoisomers, geometric isomers, tautomers or One or more active ingredients for the prevention and/or treatment of tumors, autoimmune diseases, kidney diseases, cardiovascular diseases, inflammatory diseases, metabolic/endocrine dysfunction or neurological diseases other than pharmaceutically acceptable salts;
  • the pharmaceutical composition is a pharmaceutically acceptable pharmaceutical preparation for preventing and/or treating tumors, autoimmune diseases, kidney diseases, cardiovascular diseases, inflammatory diseases, metabolic/endocrine dysfunction or neurological diseases .
  • the present invention also provides a pharmaceutical preparation, which comprises at least one of the compounds, stereoisomers, geometric isomers, tautomers or pharmaceutically acceptable salts thereof, and optionally
  • the pharmaceutical preparation is selected from the following pharmaceutical dosage forms: preparations for parenteral administration, such as injection solutions or suspensions; preparations for enteral administration, such as Oral formulations, such as tablets or capsules; topical formulations, such as lotions, gels, ointments, emulsions, nasal formulations, suppositories, transdermal formulations, or ophthalmic formulations.
  • the present invention also provides the compound, its stereoisomers, geometric isomers, tautomers or pharmaceutically acceptable salts, or the pharmaceutical composition is prepared for prevention and/ Or use in drugs for treating tumors, autoimmune diseases, kidney diseases, cardiovascular diseases, inflammatory diseases, metabolic/endocrine dysfunction or neurological diseases.
  • the present invention provides a method for the prevention and/or treatment of tumors, autoimmune diseases, kidney diseases, cardiovascular diseases, inflammatory diseases, metabolic/endocrine dysfunction or neurological diseases, the method comprising administering to recipients in need
  • the subject is a preventive and/or therapeutically effective amount of the compound, its stereoisomer, geometric isomer, tautomer or pharmaceutically acceptable salt, or the pharmaceutical composition.
  • Halogen refers to fluorine, chlorine, bromine or iodine.
  • C 1-4 alkyl refers to straight and branched chain saturated aliphatic hydrocarbon groups having 1 to 4 carbon atoms. Examples of such groups include, but are not limited to: methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, and tert-butyl.
  • C 3-6 cycloalkyl refers to a saturated monocyclic, fused, spiro or polycyclic structure having 3 to 6 carbon ring atoms.
  • Examples of such groups include, but are not limited to: cyclopropyl, cyclobutyl, cyclopentyl, and cyclohexyl.
  • Examples of such groups include, but are not limited to: cyclobutene, cyclopentene, and cyclohexene.
  • Examples of such groups include, but are not limited to: 2,3-dihydrofuran, 2,5-dihydrofuran, 1,3-dioxole, 1,4-dioxa-2-hexene Alkenes, 2,3-dihydro-1H-pyrrole, 2,5-dihydro-1H-pyrrole, 1,2,3,4-tetrahydropyridine and 1,2,3,6-tetrahydropyridine.
  • the aryl group refers to a monocyclic or bicyclic aromatic hydrocarbon group, which usually has 6-10 carbon atoms. Examples of such groups include phenyl or naphthyl; phenyl is preferred.
  • Heteroaryl refers to a 5-10 membered aromatic heterocyclic group, including but not limited to: 5-membered heteroaryl: furyl, thienyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazole Group, imidazolyl, pyrazolyl, triazolyl (1,2,4-triazolyl, 1,3,4-triazolyl or 1,2,3-triazolyl), thiadiazolyl (1 ,3,4-thiadiazolyl, 1,2,5-thiadiazolyl, 1,2,3-thiadiazolyl or 1,2,4-thiadiazolyl) and oxadiazolyl (1 ,3,4-oxadiazolyl, 1,2,5-oxadiazolyl, 1,2,3-oxadiazolyl or 1,2,4-oxadiazolyl); and 6-membered heteroaromatic Groups: pyridyl, pyrimidinyl, pyraziny
  • alkyl optionally substituted by halogen means that halogen may but need not be present, and the description includes the case where the alkyl group is substituted by halogen and the case where the alkyl group is not substituted by halogen.
  • the compounds of the present invention may contain one or more chiral centers, which exist in different stereoisomeric forms. All stereoisomeric forms of the compounds of the present invention, including but not limited to diastereomers, enantiomers and atropisomers, and their mixtures (such as racemic mixtures) are within the scope of the present invention .
  • the compounds described in the present invention include their geometric isomers.
  • these compounds may have geometric isomers, and their cis, trans forms, and mixtures of cis and trans are all included in the scope of the present invention .
  • Tautomers refer to structural isomers of different energies that are mutually converted via a low energy barrier, such as keto-enol and imine-enamine tautomerization.
  • the compound of the present invention also includes its isotope-labeled compound, in which one or more atoms are replaced by atoms having the same atomic number but having an atomic mass number different from those commonly found in nature.
  • isotopes suitable for the present invention include, but are not limited to: hydrogen isotopes 2 H and 3 H; carbon isotopes 11 C, 13 C, and 14 C; chlorine isotope 36 Cl; fluorine isotope 18 F; iodine isotope 123 I and 125 I; nitrogen isotope 13 N and 15 N; oxygen isotope 15 O, 17 O and 18 O; phosphorus isotope 32 P and sulfur isotope 35 S.
  • Prodrugs of the compounds of the present invention are also included in the scope of the present invention. Certain derivatives of the compounds of the present invention have weak pharmacological activity or no pharmacological activity, but when these derivatives are administered to the body or to the body, they can be converted to have pharmacological activity by means such as hydrolysis and cleavage. Of the compounds described in the present invention, these derivatives are called "prodrugs". Further information on the use of prodrugs can be found in Pro-drugs as Novel Delivery Systems, Vol. 14, ACS Symposium Series (T. Higuchi and W. Stella) and Bioreversible Carriers in Drug Design, Pergamon Press, 1987 (ed.EBRoche, Found in American Pharmaceutical Association).
  • the compounds of the present invention include their pharmaceutically acceptable salts.
  • a pharmaceutically acceptable salt refers to a salt that is pharmaceutically acceptable and has the required pharmacological activity of the parent compound. Berge et al. described pharmaceutically acceptable salts in detail in J. Pharma. Sci., 1977, 66, 1-19, which is incorporated herein by reference.
  • the compound of the present invention may contain sufficient acidic groups, sufficient basic groups or both types of functional groups, and correspondingly react with some inorganic or organic bases, or inorganic and organic acids to form pharmaceuticals.
  • the acceptable salt refers to a salt that is pharmaceutically acceptable and has the required pharmacological activity of the parent compound. Berge et al. described pharmaceutically acceptable salts in detail in J. Pharma. Sci., 1977, 66, 1-19, which is incorporated herein by reference.
  • the compound of the present invention may contain sufficient acidic groups, sufficient basic groups or both types of functional groups, and correspondingly react with some inorganic or organic bases, or inorganic and organic acids to
  • Examples of pharmaceutically acceptable salts include sulfate, pyrosulfate, bisulfate, sulfite, bisulfite, phosphate, monohydrogen phosphate, dihydrogen phosphate, metaphosphate, pyrophosphate, Hydrochloride, hydrobromide, hydroiodide, acetate, propionate, caprate, caprylate, acrylate, formate, isobutyrate, caproate, heptanoate, Propionate, oxalate, malonate, succinate, suberate, sebacate, fumarate, maleate, butyne-1,4-dioate, hexyl Alkyne-1,6-dioxate, benzoate, chlorobenzoate, methylbenzoate, dinitrobenzoate, hydroxybenzoate, methoxybenzoate , Phthalate, sulfonate, xylene sulfonate, phenylacetate, phenylprop
  • the pharmaceutical composition of the compound of the present invention When the compound of the present invention is used as a medicine, it is usually administered in the form of a pharmaceutical composition. Therefore, the pharmaceutical composition of the compound of the present invention and a pharmaceutically acceptable carrier, diluent or excipient is also included in the scope of the present invention.
  • the carriers, adjuvants, and excipients used herein include any and all solvents, diluents or other liquid excipients, dispersing agents or suspending agents, surfactants, isotonic agents, suitable for the specific dosage form desired. Thickener or emulsifier, preservative, solid binder, lubricant, etc. In Remington: The Science and Practice of Pharmacy, 21 st edition, 2005, ed.
  • composition of the present invention can be administered by any route suitable for the condition to be treated.
  • it is administered in the following forms: parenteral, for example, in the form of injectable solutions or suspensions; enteral, for example, orally, for example, in the form of tablets or capsules; topically, for example, in the form of lotions, gels, ointments Or in the form of an emulsion or in the form of a nasal or suppository.
  • Topical application is, for example, application to the skin.
  • Another form of topical administration is administration to the eye.
  • the pharmaceutical composition may be administered in a solid, semi-solid, liquid or gaseous form, or may be in a dried powder, such as a lyophilized form.
  • the pharmaceutical composition can be packaged in a form for convenient delivery, including, for example, solid dosage forms such as capsules, sachets, cachets, gelatin, paper, tablets, suppositories, pellets, pills, lozenges, and lozenges.
  • the type of packaging will generally depend on the route of administration. It also covers implantable sustained-release formulations, as well as transdermal formulations.
  • materials that can be used as pharmaceutically acceptable carriers include, but are not limited to: ion exchangers, alumina, aluminum stearate, lecithin, serum proteins (such as human serum albumin), buffer substances (such as phosphate), Glycine, sorbic acid or potassium sorbate, partial glyceride mixture of saturated plant fatty acids, water, salt or electrolyte (e.g. protamine sulfate, disodium hydrogen phosphate, potassium hydrogen phosphate, sodium chloride, zinc salt), colloidal dioxide Silicon, magnesium trisilicate, polyvinylpyrrolidone, polyacrylates, waxes, polyethylene-polyoxypropylene block copolymers, lanolin, sugars (e.g.
  • lactose glucose and sucrose
  • starches e.g. corn starch and potato Starch
  • cellulose and its derivatives such as sodium carboxymethyl cellulose, ethyl cellulose and cellulose acetate
  • tragacanth powder malt
  • gelatin gelatin
  • excipients such as cocoa butter and suppositories Waxes
  • oils such as peanut oil, cottonseed oil; safflower oil; sesame oil; olive oil; corn oil and soybean oil
  • glycols such as propylene glycol or polyethylene glycol
  • esters such as ethyl oleate and ethyl laurate
  • Agar buffers, such as magnesium hydroxide and aluminum hydroxide; alginic acid; pyrogen-free water; isotonic saline; Ringer's solution; ethanol; and phosphate buffer, and other non-toxic compatible lubrication Agents such as sodium lauryl sulfate and magnesium stearate.
  • the compounds described in the present invention can be used alone or in combination with other therapeutic agents for the treatment of the diseases or disorders (such as cancer) described in the present invention.
  • the compound of the present invention is combined with a second compound that has anti-hyperproliferative properties or is used to treat hyperproliferative diseases (such as cancer) in a pharmaceutical combination preparation, or is administered as a combination therapy. Joint in the program.
  • the second compound of the drug combination formulation or the dosing regimen preferably has complementary activities to the compound of the present invention, so that they do not adversely affect each other.
  • Such compounds are suitably present in the combination in an amount effective for the intended purpose.
  • the compound of the present invention is combined with other anti-tumor drugs.
  • the anti-tumor drugs include: alkylating agents, including but not limited to cyclophosphamide, nitrogen mustard, melphalan, leuconin, carmustine; metal platinum, including but not limited to carboplatin, cisplatin, and oxa Liplatin; topoisomerase inhibitors, including but not limited to topotecan, camptothecin, topotecan, irinotecan; antibiotics, including but not limited to anisomycin, actinomycin D, daunorin Anti-microtubule or anti-mitotic agents, including but not limited to paclitaxel, vinorelbine, docetaxel, doxorubicin; Antimetabolites, including but not limited to fluorouracil, methotrexate, cytarabine, mecaptopurine, thioguanine, and gemcitabine; antibodies, including but not limited to Herceptin, bevacizumab; Hormones, including but not limited to letrazole, vor
  • the fourth aspect of the technical solution of the present invention provides the compound of the first aspect, its stereoisomers, geometric isomers, tautomers or pharmaceutically acceptable salts, or the pharmaceutical combination of the third aspect
  • the application of the drug in the preparation of drugs for the prevention and/or treatment of STAT3-mediated diseases wherein the STAT3-mediated diseases include cancer, immune diseases, cardiovascular diseases, viral infections, inflammatory diseases, and metabolic diseases. /Endocrine dysfunction or neurological disease.
  • the compound of the present invention has strong in vitro anti-proliferation activity on human prostate cancer cell DU145 with high STAT3 expression.
  • the compound of the present invention shows obvious inhibitory activity on the phosphorylation of STAT3 of human prostate cancer DU145 in an immunoblotting experiment.
  • In vivo pharmacodynamic studies show that the compound of the present invention exhibits a significant growth inhibitory effect in a nude mouse DU145 xenograft model of human prostate cancer.
  • Figure 1 is an image of the result of immunoblotting, which shows the inhibitory effect of Examples 1-7, 12, 13 and 15 on the expression of p-STAT3 in human prostate cancer cells DU145 cells.
  • Figure 2 is a tumor growth curve, which shows the growth inhibitory effect of Example 1 in a human prostate cancer DU145 xenograft model in nude mice.
  • molecules with a single chiral center exist as a racemic mixture.
  • those molecules with two or more chiral centers exist as racemic mixtures of diastereomers.
  • Single enantiomers/diastereomers can be obtained by methods known to those skilled in the art.
  • the compounds of the present invention can be synthesized according to the synthetic schemes herein and/or techniques well known in the art.
  • the compounds provided by the present invention can be prepared according to the following general synthetic methods.
  • the pyrazole compound of the present invention can be prepared by a two-step reaction.
  • compound C is prepared by condensation reaction; compound C is prepared by sulfonylation reaction to obtain the pyrazole compound represented by formula (I).
  • the pyrazole compound of the present invention can be prepared by a three-step reaction.
  • compound E is prepared through sulfonylation reaction, which is then hydrolyzed with lithium hydroxide to obtain compound F.
  • compound F is reacted with (1-R 1 -1H-pyrazol-4-yl)methylamine or its hydrochloride to prepare the pyrazole compound represented by formula (I).
  • the compounds of the present invention can be synthesized according to one or more synthesis schemes and/or techniques well known in the art. Those skilled in the art should recognize that the synthesis methods of certain embodiments described in detail in the present invention can be easily adapted to synthesize other embodiments.
  • the compounds described herein can be prepared by an appropriate combination of synthetic methods well known in the art. Many starting materials and other reagents can be purchased from commercial suppliers, such as Alfa Aesar (China) Chemical Co., Ltd., or can be easily prepared using synthetic methods commonly used in the art.
  • the 1 H NMR spectrum was recorded on an instrument operating at 400 MHz.
  • the H NMR spectrum was obtained as a solution (reported in ppm), using the internal standard tetramethylsilane (0.00 ppm) as a reference standard.
  • peak multiplicity the following abbreviations are used: s (single peak), d (double peak), t (triplet), q (quartet), m (multiple peak), br (broad peak), dd( Double doublet), dt (double triplet).
  • the coupling of Changshu is given in Hertz (Hz).
  • the (R)- and (S)-isomers of the non-limiting exemplary compounds can be resolved by methods known to those skilled in the art, for example, by forming diastereomeric salts or Complex, which can be separated by, for example, crystallization; by forming diastereoisomeric derivatives, which can be separated by, for example, crystallization or chromatography; making one enantiomer selectively with an enantiomer-specific reagent Reaction, followed by separation of modified and unmodified enantiomers; or chromatographic separation in a chiral environment such as a chiral chromatography column.
  • specific enantiomers can be prepared by asymmetric synthesis using optically active reagents, substrates, catalysts, or solvents, or by converting one enantiomer into the other by asymmetric transformation.
  • Me refers to methyl
  • Et refers to ethyl
  • PE refers to petroleum ether
  • EtOAc refers to ethyl acetate
  • MeOH refers to methanol
  • DMSO -d 6
  • DCM dichloromethane
  • DMAP 4-dimethylaminopyridine
  • HATU refers to O-(7-azabenzotriazide Azolyl)-N,N,N',N'-tetramethyluronium hexafluorophosphate
  • mL means milliliters
  • mmol means millimoles
  • ⁇ M means micromoles
  • nM Refers to nanomoles
  • °C refers to degrees Celsius.
  • Step 1 Synthesis of methyl 4-methyl-3-((4-methylphenyl)sulfonamido)benzoate
  • Step 3 Synthesis of 4-methyl-N-((1-methyl-1H-pyrazol-4-yl)methyl)-3-((4-methylphenyl)sulfonamido)benzamide
  • Step 1 Synthesis of methyl 3-((4-ethylphenyl)sulfonamido)-4-methylbenzoate
  • Step 3 Synthesis of 3-((4-ethylphenyl)sulfonamido)-4-methyl-N-((1-methyl-1H-pyrazol-4-yl)methyl)benzamide
  • Step 1 Synthesis of methyl 3-((4-cyclopropylphenyl)sulfonamido)-4-methylbenzoate
  • Step 3 3-((4-Cyclopropylphenyl)sulfonamido)-4-methyl-N-((1-methyl-1H-pyrazol-4-yl)methyl)benzamide synthesis
  • Step 2 Synthesis of 3-((4-methoxyphenyl)sulfonamido)-4-methyl-N-((1-methyl-1H-pyrazol-4yl)methyl)benzamide
  • Step 2 Synthesis of 4-ethyl-N-((1-methyl-1H-pyrazol-4-yl)methyl)-3-((4-methylphenyl)sulfonamido)benzamide
  • Step 1 Synthesis of methyl 3-((4-methylphenyl)sulfonamido)benzoate
  • Step 1 Synthesis of methyl 3-chloro-5-((4-methylphenyl)sulfonamido)benzoate
  • Step 3 Synthesis of 3-chloro-N-((1-methyl-1H-pyrazol-4-yl)methyl)-5-((4-methylphenyl)sulfonamido)benzamide
  • Step 1 Synthesis of methyl 3-methyl-5-((4-methylphenyl)sulfonamido)benzoate
  • Step 3 Synthesis of 3-methyl-N-((1-methyl-1H-pyrazol-4-yl)methyl)-5-((4-methylphenyl)sulfonamido)benzamide
  • Step 1 Synthesis of methyl 3-fluoro-5-((4-methylphenyl)sulfonamido)benzoate
  • Step 3 Synthesis of 3-fluoro-N-((1-methyl-1H-pyrazol-4-yl)methyl)-5-((4-methylphenyl)sulfonamido)benzamide
  • Step 1 Synthesis of methyl 4-fluoro-3-((4-methylphenyl)sulfonamido)benzoate
  • Step 3 Synthesis of 4-fluoro-N-((1-methyl-1H-pyrazol-4-yl)methyl)-3-((4-methylphenyl)sulfonamido)benzamide
  • Step 3 Synthesis of 4-chloro-N-((1-methyl-1H-pyrazol-4-yl)methyl)-3-((4-methylphenyl)sulfonamido)benzamide
  • DU145 cells human prostate cancer cells
  • DU145 cells human prostate cancer cells
  • trypsin-EDTA trypsin-EDTA
  • Test compound and corresponding solvent control fresh medium add 100 ⁇ L to each well (final DMSO concentration ⁇ 0.1%), continue to incubate at 37°C for 72h, add 20 ⁇ L of freshly prepared PBS solution containing 5mg/mL MTT to each well, and continue to incubate for 4h After discarding the supernatant, add 180 ⁇ L of DMSO to each well to dissolve the MTT formazan precipitate, shake and mix with a micro-shaker, and measure the optical density (OD) at a detection wavelength of 570nm.
  • the tumor cells treated with DMSO are used as the control group.
  • the following formula calculates the inhibitory rate of the test compound on the growth of tumor cells, and calculates the IC 50 according to the intermediate effect equation:
  • Inhibition rate (%) (average OD value of the control group-average OD value of the drug addition group)/average OD value of the control group ⁇ 100%
  • the primary antibody was incubated with p-STAT3 (Tyr705) and STAT3 specific antibody at 4°C overnight. Use the corresponding HRP-labeled secondary antibody to incubate for 2h at room temperature and wash. Add ECL chemiluminescence substrate reaction solution, develop in the gel imaging system, and save the image. Use ⁇ -actin as internal reference.
  • the tumor volume is calculated according to the following formula:
  • Tumor volume (a ⁇ b 2 )/2, a and b represent the length and width of the tumor body, respectively.
  • Example 1 exhibits significant anti-tumor activity in nude mice of human prostate cancer DU145 xenograft model at doses of 10 mg/kg and 20 mg/kg.
  • Example 1 Growth inhibitory effect of Example 1 in nude mice human prostate cancer DU145 xenograft model
  • Example 1 showed a significant growth inhibitory effect in a nude mouse DU145 xenograft model of human prostate cancer.

Abstract

一种取代的吡唑类化合物及其制备方法、用途和药物组合物。所述吡唑类化合物由式(I)所示,其为STAT3信号通路抑制剂,可以用于预防和/或治疗与STAT3活性相关的疾病,如肿瘤、自身免疫性疾病、肾脏疾病、心血管疾病、炎性疾病、代谢/内分泌功能障碍或神经疾病。

Description

吡唑类化合物及其制备方法、用途和药物组合物 技术领域
本发明属于制药技术领域,涉及一种吡唑类化合物及其制备方法、用途和药物组合物。
背景技术
信号传导与转录激活因子(Signal Transducer and Activator of Transcription,STAT)蛋白家族发挥这信号转导和转录调控的双重功能。虽然STAT家族各成员结构相近,但是却各自参与了不同的细胞过程。目前已经分离纯化的STAT家族成员有7个,即STAT1,STAT2,STAT3,STAT4,STAT5A,STAT5B和STAT6。
作为STAT家族的一员,STAT3在癌症的发生与发展、炎症、缺血/再灌注损伤和干细胞自我更新等方面发挥着重要的作用。STAT3可被受体酪氨酸激酶和非受体酪氨酸激酶激活。当细胞因子与其受体结合后,受体发生二聚化并导致JAK激酶发生磷酸化,进而使得STAT3分子C-末端的酪氨酸残基(Tyr705)发生磷酸化,通过其SH2区形成二聚体而激活,并转移到细胞核内与特异的DNA序列结合,调控靶基因的转录。此外,另外,位于Stat3转录激活结构域中的Ser727被MAPK或mTOR通路进一步激活,调控Stat3转录活性,这并且被认为是其完全激活所必需的。除了Tyr705和Ser727的磷酸化之外,Lys685的乙酰化可稳定Stat3二聚体,调控Stat3活性。
目前,已经有一些STAT3抑制剂进入了临床研究阶段,用于肿瘤治疗和自身免疫性疾病。波士顿生物医学公司开发的STAT3抑制剂napabucasin2016年6月获得FDA孤儿药资格认定,用于治疗胃食管交界处癌,目前处于III其临床试验阶段;在2016年11月获得FDA孤儿药资格认定,用于治疗胰腺癌,目前处于III其临床试验阶段。还有一些STAT3抑制剂也在进行各种临床试验研究,如GLG公司开发的STAT3抑制剂GLG-302正处于I期临床试验中,用于治疗肿瘤、多囊肾病;GLG-801用于治疗肾病白血病、银屑病,处于II期临床试验。Moleculin生物技术开发的STAT3抑制剂MOL-4249,用于轻至中度银屑病的治疗,目前处于Ⅱ期临床试验阶段;Takeda公司的AK-114用于治疗溃疡性结肠炎,正处于II期临床研究阶段。此外,还有文献报导Bt354作为STAT3信号通路的抑制剂,可用于治疗三阴性乳腺癌等癌症。
STAT3已成为了非常有吸引力的药物靶标,但还需要研发更安全有效的STAT3抑制剂用于预防和/或治疗肿瘤、自身免疫性疾病、肾脏 疾病、心血管疾病、炎性疾病、代谢/内分泌功能障碍或神经疾病。
发明内容
本发明解决的技术问题是提供一种新的STAT3信号通路抑制剂,其制备方法、药物组合物和用途,此类STAT3信号通路抑制剂对高表达STAT的肿瘤细胞,特别是人前列腺癌细胞DU-145有较强的抑制活性,从而对由STAT3介导的疾病,如肿瘤、自身免疫性疾病、肾脏疾病、心血管疾病、炎性疾病、代谢/内分泌功能障碍或神经疾病具有更好的预防和/或治疗效果。
为解决本发明的技术问题,本发明提供如下技术方案:
本发明技术方案的第一方面是提供了一种式(I)所示的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐:
Figure PCTCN2020094796-appb-000001
其中
R 1选自C 1-4烷基、C 3-6环烷基;
R 2选自:苯基,其中所述苯基在对位被Ra取代;5-10元杂芳基,其中所述5-10元杂芳基被Ra取代;或与C 4-6环烯烃或C 4-6杂环烯烃稠合的苯基;
Ra选自:氯、甲基、乙基、异丙基、环丙基、环丁基、甲氧基和乙氧基;
R 3和R 4各自独立地选自氢、卤素、甲基、乙基和甲氧基。
在进一步优选的实施方案中,R 1选自甲基、乙基、正丙基、异丙基、环丙基、环丁基。
在另一个优选的实施方案中,本发明提供了一种式(I)所示的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐:
其中
R 1选自C 1-4烷基、C 3-6环烷基;优选选自甲基、乙基、正丙基、异丙基、环丙基、环丁基;
R 2选自:
Figure PCTCN2020094796-appb-000002
Ra选自以下的基团:氯、甲基、乙基、异丙基、环丙基、环丁基、甲氧基和乙氧基;
R 3和R 4各自独立地选自氢、卤素、甲基、乙基和甲氧基。
在进一步优选的实施方案中,Ra选自以下的基团:甲基、乙基、环丙基、甲氧基和乙氧基。
在又一个优选的实施方案中,本发明提供了一种式(I)所示的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐:
其中
R 1选自C 1-4烷基、C 3-6环烷基;优选选自甲基、乙基、正丙基、异丙基、环丙基、环丁基;
R 2选自:
Figure PCTCN2020094796-appb-000003
R 3和R 4各自独立地选自氢、卤素、甲基、乙基和甲氧基。
在又一个优选的实施方案中,本发明提供了一种式(I)所示的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐:
其中
R 1选自C 1-4烷基、C 3-6环烷基;优选选自甲基、乙基、正丙基、异丙基、环丙基、环丁基;
R 2选自苯基,其中所述苯基在对位被Ra取代;5-10元杂芳基,其中所述5-10元杂芳基被Ra取代;或与C 4-6环烯烃或C 4-6杂环烯烃稠合的苯基;
Ra选自:氯、甲基、乙基、异丙基、环丙基、环丁基、甲氧基和乙氧基;
优选地,R 2选自:
Figure PCTCN2020094796-appb-000004
Ra选自以下的基团:氯、甲基、乙基、异丙基、环丙基、环丁基、甲氧基和乙氧基;
进一步优选地,Ra选自以下的基团:甲基、乙基、环丙基、甲氧基和乙氧基;
或R 2选自:
Figure PCTCN2020094796-appb-000005
R 3和R 4各自独立地选自氢、卤素、甲基、乙基和甲氧基。
在进一步优选的实施方案中,R 3和R 4各自独立地选自氢、氯、氟、甲基、乙基,且R 3和R 4至少一个为氢。
在进一步优选的实施方案中,R 3选自甲基,R 4选自氢;或者R 3选自氢,R 4选自氯和氟。
具体来说,根据本发明优选的化合物如下:
Figure PCTCN2020094796-appb-000006
本发明技术方案的第二方面是提供了所述化合物、其立体异构体、几何异构体、互变异构体的制备方法,其包括以下步骤:
Figure PCTCN2020094796-appb-000007
(1)以化合物A和B为起始物料,经过缩合反应制备化合物C;
(2)将化合物C与芳基磺酰氯或杂芳基磺酰氯反应,制备式(I)所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐。
本发明技术方案的第二方面还提供了另一种制备所述化合物、其立体异构体、几何异构体、互变异构体的方法,其包括以下步骤:
Figure PCTCN2020094796-appb-000008
(1)以化合物D为起始物料,经过磺酰化反应制备化合物E;
(2)用氢氧化锂水解化合物E,制备化合物F;
(3)将化合物F与(1-R 1-1H-吡唑-4-基)甲胺或其盐酸盐反应,制备式(I)所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐。
本发明技术方案的第三方面是提供了一种药物组合物,所述药物组合物包含所述化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐,以及任选的药学上可接受的载体和/或赋形剂;优选地,所述药物组合物还包含除所述化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐之外的一种或多种预防和/或治疗肿瘤、自身免疫性疾病、肾脏疾病、心血管疾病、炎性疾病、代谢/内分泌功能障碍或神经疾病的药物活性成分;优选地,所述药物组 合物为药学上可接受的用于预防和/或治疗肿瘤、自身免疫性疾病、肾脏疾病、心血管疾病、炎性疾病、代谢/内分泌功能障碍或神经疾病的药物制剂。
又一方面,本发明还提供了一种药物制剂,其包含至少一种所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐以及任选的药学上可接受的载体或/或赋形剂;优选地,所述药物制剂选自以下列药物剂型:胃肠道外给药制剂,例如注射溶液或混悬剂;经肠给药制剂,例如口服制剂,如片剂或胶囊剂;局部给药制剂,例如洗剂、凝胶、软膏、乳剂、经鼻给药制剂、栓剂、经皮给药制剂或眼用制剂。
又一方面,本发明还提供了所述化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐、或者所述药物组合物在制备用于预防和/或治疗肿瘤、自身免疫性疾病、肾脏疾病、心血管疾病、炎性疾病、代谢/内分泌功能障碍或神经疾病的药物中的用途。换言之,本发明提供了一种预防和/或治疗肿瘤、自身免疫性疾病、肾脏疾病、心血管疾病、炎性疾病、代谢/内分泌功能障碍或神经疾病的方法,该方法包括给予有需要的受试者预防和/或治疗有效量的所述化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐,或者所述药物组合物。
以下就本发明所使用的部分术语定义如下,其它未定义的术语具有所属技术领域技术人员公知的含义。
卤素是指氟、氯、溴或碘。
C 1-4烷基是指具有1至4个碳原子的直链及支链饱和脂族烃基。此类基团的实例包括但不限于:甲基、乙基、丙基、异丙基、正丁基、异丁基及叔丁基。
C 3-6环烷基是指具有3至6个碳环原子的饱和的单环、稠合、螺环或多环结构。此类基团的实例包括但不限于:环丙基、环丁基、环戊基及环己基。
C 4-6环烯烃是指具有4至6个碳环原子的含有一个C=C双键的单环结构。此类基团的实例包括但不限于:环丁烯、环戊烯及环己烯。
C 4-6杂环烯烃是指具有4至6个环原子的含有一个C=C双键的单环结构,其中一个或多个环原子为选自氮、氧或S(O) m(其中m是0至2的整数)的杂原子,但不包括-O-O-、-O-S-或-S-S-的环部分,其余环原子为碳。此类基团的实例包括但不限于:2,3-二氢呋喃、2,5-二氢呋喃、1,3-间二氧杂环戊烯,1,4-二氧杂-2-己烯,2,3-二氢-1H-吡咯,2,5-二氢-1H-吡咯,1,2,3,4-四氢吡啶和1,2,3,6-四氢吡啶。
芳基是指单环或双环的芳香性烃基,其通常具有6-10个碳原子。 此类基团的实例包括苯基或萘基;优选苯基。
杂芳基是指5-10元芳香性杂环基,包括但不限于:5-元杂芳基:呋喃基、噻吩基、吡咯基、噁唑基、异噁唑基、噻唑基、异噻唑基、咪唑基、吡唑基、三唑基(1,2,4-三唑基、1,3,4-三唑基或1,2,3-三唑基)、噻二唑基(1,3,4-噻二唑基、1,2,5-噻二唑基、1,2,3-噻二唑基或1,2,4-噻二唑基)和噁二唑基(1,3,4-噁二唑基、1,2,5-噁二唑基、1,2,3-噁二唑基或1,2,4-噁二唑基);以及6-元杂芳基:吡啶基、嘧啶基、吡嗪基和哒嗪基;以及双环基团,例如苯并呋喃基、苯并噻吩基、吲唑基、嘌呤基、喹啉基、异喹啉基、酞嗪基、萘啶基、喹喔啉基(chinocalinyl)、喹唑啉基、噌啉基、蝶啶基、吲嗪基、吲哚基、异吲哚基。优选的杂芳基基团是噻吩基、噻唑基、吡啶基、嘧啶基。
“任选地”意味着随后所描述的事件或环境可以但不必发生,该说明包括该事件或环境发生或不发生地场合。例如,“任选地被卤素取代的烷基”意味着卤素可以但不必须存在,该说明包括烷基被卤素取代的情形和烷基不被卤素取代的情形。
本发明所述的化合物可以含有一个或多个手性中心,其以不同立体异构形式存在。本发明化合物的所有立体异构形式,包括但不限于非对映异构体、对映异构体和阻转异构体以及它们的混合物(如外消旋混合物)均在本发明的范围内。
本发明所述的化合物包括其几何异构体。例如,若本发明的所述化合物含有双键或稠环,这些化合物可存在几何异构体,则它们的顺式、反式形式以及顺式和反式的混合物均包括在本发明的范围内。
本发明所述的化合物包括其互变异构体。互变异构体是指经由低能垒相互转化的不同能量的结构异构体,例如酮-烯醇和亚胺-烯胺互变异构化。
本发明所述的化合物还包括其同位素标记化合物,其中一个或多个原子被具有相同原子序数、但是原子质量数与自然界中通常发现的原子质量数不同的原子替代。适合本发明的同位素实例包括但不限于:氢的同位素 2H和 3H;碳的同位素 11C、 13C和 14C;氯的同位素 36Cl;氟的同位素 18F;碘的同位素 123I和 125I;氮的同位素 13N和 15N;氧的同位素 15O、 17O和 18O;磷的同位素 32P和硫的同位素 35S。
本发明所述的化合物或其盐的各种水合物和溶剂合物以及其多晶型(polymorphisms)也包括在本发明的范围内。
本发明所述的化合物的前药也包括在本发明的范围内。本发明所述的化合物的某些衍生物自身具有较弱药理活性或没有药理活性,但当这些衍生物给至体内或给至身体上时,它们可通过例如水解断裂等方式被转化成具有药理活性的本发明所述的化合物,这些衍生物称为“前药”。关于前药用途的进一步信息可以在Pro-drugs as Novel  Delivery Systems,Vol.14,ACS Symposium Series(T.Higuchi and W.Stella)和Bioreversible Carriers in Drug Design,Pergamon Press,1987(ed.E.B.Roche,American Pharmaceutical Association)中找到。
本发明所述的化合物包括其药学上可以接受的盐。药学上可接受的盐是指为药学上可接受的并且具有母体化合物所需的药理活性的盐。Berge等人在J.Pharma.Sci.,1977,66,1-19中详细描述了医药学上可接受的盐,所述文献以引用的方式并入本文中。本发明所述的化合物可以含有足够的酸性基团、足够的碱性基团或兼具这两种类型的功能基团,并相应地与一些无机或有机碱、或无机和有机酸反应形成药学上可接受的盐。药学上可接受的盐的实例包括硫酸盐、焦硫酸盐、硫酸氢盐、亚硫酸盐、亚硫酸氢盐、磷酸盐、单氢磷酸盐、二氢磷酸盐、偏磷酸盐、焦磷酸盐、盐酸盐、氢溴酸盐、氢碘酸盐、醋酸盐、丙酸盐、癸酸盐、辛酸盐、丙烯酸盐、甲酸盐、异丁酸盐、己酸盐、庚酸盐、丙炔酸盐、草酸盐、丙二酸盐、琥珀酸盐、辛二酸盐、癸二酸盐、富马酸盐、马来酸盐、丁炔-1,4-二酸盐、己炔-1,6-二酸盐、苯甲酸盐、氯代苯甲酸盐、甲基苯甲酸盐、二硝基苯甲酸盐、羟基苯甲酸盐、甲氧基苯甲酸盐、邻苯二甲酸盐、磺酸盐、二甲苯磺酸盐、苯乙酸盐、苯丙酸盐、苯丁酸盐、柠檬酸盐、乳酸盐、γ-羟基丁酸盐、羟乙酸盐、酒石酸盐、甲烷磺酸盐、丙磺酸盐、萘-1-磺酸盐、萘-2-磺酸盐和扁桃酸盐。
本发明所述的化合物在作为药物使用时,通常是以药物组合物的形式给药。因此,本发明所述的化合物和药学上可接受的载体、稀释剂或赋形剂的药物组合物也包括在本发明的范围。本文所用的载体、助剂、赋形剂包括适合于期望的特定剂型的任意的和所有的溶剂、稀释剂或其他液体赋形剂、分散剂或助悬剂、表面活性剂、等渗剂、增稠剂或乳化剂、防腐剂、固体粘合剂、润滑剂等。在Remington:The Science and Practice of Pharmacy,21 st edition,2005,ed.D.B.Troy,Lippincott Williams&Wilkins,Philadelphia,和Encyclopedia of Pharmaceutical Technology,eds.J.Swarbrick和J.C.Boylan,1988-1999,Marcel Dekker,New York中,公开了用于配制药学可接受的组合物的各种载体和用于其制备的已知技术,将它们的内容都通过参考引入本文。
本发明所述的组合物可通过适于待治疗的病症的任何途径给药。特别是经以下列形式给药:胃肠道外,例如以可注射溶液或混悬剂形式;经肠,例如口服,例如以片剂或胶囊剂形式;局部,例如以洗剂、凝胶、软膏或乳剂形式或以鼻或栓剂形式。局部施用是例如施用于皮肤。局部给药的另一种形式是给药于眼。
药物组合物可以以固体、半固体、液体或气态形式施用,或可呈 干燥的散剂,诸如冻干形式。药物组合物可包装为便于传递的形式,包括例如固体剂型,诸如胶囊、药囊、扁囊剂、明胶、纸、片剂、栓剂、团粒、丸剂、含片及锭剂。包装的类型一般将取决于施用途径。也涵盖可植入的持续释放的制剂,以及经皮制剂。
能够作为药学可接受的载体的材料的一些实例包括但不限于:离子交换剂、氧化铝、硬脂酸铝、卵磷脂、血清蛋白质(例如人血清白蛋白)、缓冲物质(例如磷酸盐)、甘氨酸、山梨酸或山梨酸钾、饱和植物脂肪酸的偏甘油酯混合物、水、盐或电解质(例如硫酸鱼精蛋白、磷酸氢二钠、磷酸氢钾、氯化钠、锌盐)、胶体二氧化硅、三硅酸镁、聚乙烯吡咯烷酮、聚丙烯酸酯、蜡类、聚乙烯-聚氧丙烯嵌段共聚物、羊毛脂、糖类(例如乳糖、葡萄糖和蔗糖)、淀粉(例如玉米淀粉和马铃薯淀粉)、纤维素及其衍生物,例如羧甲基纤维素钠、乙基纤维素和醋酸纤维素;西黄蓍胶粉;麦芽;明胶;滑石粉;赋形剂,例如可可脂和栓剂用蜡;油类,例如花生油、棉籽油;红花油;芝麻油;橄榄油;玉米油和大豆油;二醇,例如丙二醇或聚乙二醇;酯类,例如油酸乙酯和月桂酸乙酯;琼脂;缓冲剂,例如氢氧化镁和氢氧化铝;海藻酸;无热原的水;等渗盐水;林格液;乙醇;和磷酸盐缓冲液,以及其他无毒的可相容的润滑剂,例如月桂基硫酸钠和硬脂酸镁。根据制剂人员的判断,在组合物中也可以存在着色剂、释放剂、包衣剂、甜味剂、调味剂和芳香剂、防腐剂和抗氧化剂。
本发明所述的化合物可以单独使用或与其它治疗本发明所述的疾病或病症(例如癌症)的治疗剂联合使用。在某些实施方案中,本发明所述的化合物与具有抗高度增殖性质或用于治疗高度增殖性疾病(例如癌症)的第二种化合物在药物组合制剂中联合,或作为联合治疗在给药方案中联合。药物联合制剂或者定量给药方案的第二化合物优选具有与本发明所述化合物互补的活性,以使它们不会相互产生不利影响。这样的化合物适当地以对计划目的有效的量存在于组合中。在一个实施方案中,本发明的化合物与其他抗肿瘤药物联合。所述抗肿瘤药物包括:烷化剂类,包括但不仅限于环磷酰胺、氮芥、马法兰、瘤可宁、卡莫司汀;金属铂类,包括但不仅限于卡铂、顺铂、奥沙利铂;拓扑异构酶抑制剂,包括但不仅限于拓扑特肯、喜树碱、拓扑替康、依立替康;抗生素类,包括但不仅限于茴环霉素、放线菌素D、柔红霉素、阿霉素、米托蒽醌、博来霉素、普卡霉素;抗微管或抗有丝分裂剂,包括但不仅限于紫杉醇、长春瑞滨、多西他赛、多柔比星;抗代谢物类,包括但不仅限于氟尿嘧啶,甲氨蝶呤,阿糖胞苷,巯嘌呤(mecaptopurine),硫鸟嘌呤,及吉西他滨;抗体类,包括但不仅限于赫赛汀、贝伐单抗;激素类,包括但不仅限于来曲唑(Letrazole)、伏罗唑(vorazole)、他莫西芬、托瑞米芬,氟维司群、氟他胺、尼鲁米特,曲普瑞林;激酶抑制剂类,EGFR激酶抑制剂,包括但不仅限于 吉非替尼(gefitinib)、厄洛替尼(erlotinib)、拉帕替尼(lapatinib)、阿法替尼(afatinib);VEGFR抑制剂,包括但不仅限于索拉非尼(Sorafenib)、瑞格菲尼(Regorafenib)、舒尼替尼(Sunitinib)、卡博替尼(Cabozantinib)、帕唑帕尼(Pazopanib)、凡德他尼(vandetanib)、阿昔替尼(axitinib);ALK抑制剂,包括但不仅限于克唑替尼(Crizotinib)、色瑞替尼(ceritinib)、Alectinib;Bcr-Abl抑制剂,包括但不仅限于伊马替尼(Imatinib)、帕纳替尼(Ponatinib)、尼洛替尼(Nilotinib)、达沙替尼(Dasatinib);BTK抑制剂,包括但不仅限于依鲁替尼(Ibrutinib);B-RAF抑制剂,包括但不仅限于维罗非尼(Vemurafenib);细胞周期蛋白依赖性激酶CDK4/6抑制剂,帕博西尼(Palbociclib);mTOR抑制剂,包括但不仅限于雷帕霉素(rapamycin)、依维莫司(everolimus);去乙酰化酶抑制剂,包括但不仅限于伏立诺他(vorinostat);PD1/PDL1抗体,Keytruda(Pembrolizumab)、Opdivo(Nivolumab)。
本发明技术方案的第四方面是提供了第一方面所述化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐,或第三方面所述药物组合物在制备用于预防和/或治疗STAT3介导的疾病的药物中的应用,其中,所述的STAT3介导的疾病包括癌症、免疫性疾病、心血管疾病、病毒感染、炎性疾病、代谢/内分泌功能障碍或神经疾病。
有益技术效果:本发明化合物对STAT3高表达的人前列腺癌细胞DU145具有很强的体外抗增殖活性。本发明化合物在免疫印迹法实验中对人前列腺癌DU145的STAT3磷酸化显示出明显的抑制活性。体内药效学研究表明,本发明化合物在裸鼠的人前列腺癌DU145异种移植模型中显示出显著的生长抑制作用。
附图说明
图1是免疫印迹结果的影像,其显示了实施例1-7、12、13和15对人前列腺癌细胞DU145细胞p-STAT3表达的抑制作用。
图2是肿瘤生长曲线,其显示了实施例1在裸鼠的人前列腺癌DU145异种移植模型中的生长抑制作用。
具体实施方式
以下是本发明的具体实施例,其对本发明的技术方案做进一步的描述,但是本发明的保护范围并不限于这些实施例。凡是不背离本发明构思的改变或是等同替代均包括在本发明的保护范围内。
在以下实施例中,除非另有结构式或化学名称注释,具有单一手 性中心的分子以外消旋混合物形式存在。除非另有结构式或化学名称注释,那些具有两个或两个以上手性中心的分子以非对映异构体的外消旋混合物形式存在。单一对映异构体/非对映异构体可以由本领域技术人员已知的方法获得。
制备方法
本发明所述的化合物可以根据本文中的合成方案和/或本领域熟知的技术来合成。例如,本发明提供的化合物可以根据以下通用合成方法制备。
在一种通用合成方法中,根据方法-1制备式(I)所示的化合物。
方法-1
Figure PCTCN2020094796-appb-000009
具体地,在方法-1中,本发明所述的吡唑类化合物可以通过2步反应制备。例如,以化合物A和B为起始物料,经过缩合反应制备化合物C;化合物C经磺酰化反应制备得到式(I)所示的吡唑类化合物。
在另一种通用合成方法中,根据方法-2制备式(I)所示的化合物。
方法-2
Figure PCTCN2020094796-appb-000010
具体地,通用合成方法-2中,本发明所述的吡唑类化合物可以通过3步反应制备。例如,以化合物D为起始物料,经过磺酰化反应制备化合物E,其再经氢氧化锂水解得到得到化合物F。化合物F与(1-R 1-1H-吡唑-4-基)甲胺或其盐酸盐反应制备得到式(I)所示的吡 唑类化合物。
本发明所述的化合物可以根据本文中一个或多个合成方案和/或本领域熟知的技术来合成。本领域技术人员应认识到,本发明中详细描述的某些实施方式的合成方法,可容易适用于合成其他实施方式。在一些实施方式中,本文所述的化合物可以通过本领域熟知的合成方法的适当组合来制备。许多起始物料和其他试剂可购自商业供应商,例如阿法埃莎(中国)化学有限公司,或使用本领域常用的合成方法容易地制备。
1H NMR谱在400MHz下操作的仪器上记录。H NMR谱以溶液形式获得(以ppm报道),使用内标四甲基硅烷(0.00ppm)作为参考标准。当报导峰多重性时,使用以下缩写:s(单峰),d(双峰),t(三重峰),q(四重峰),m(多重峰),br(宽峰),dd(双二重峰),dt(双三重峰)。给出的偶合常熟以赫兹(Hz)计。
需要时,非限制性示例性化合物的(R)-和(S)-异构体,如果存在,可以通过本领域技术人员已知的方法拆分,例如通过形成非对映异构体盐或复合物,其可通过例如结晶而分离;通过形成非对映异构性衍生物,其可通过例如结晶或色谱而分离;使一个对映异构体与对映异构体特异性试剂选择性反应,继而分离经修饰的和未经修饰的对映异构体;或在例如手性色谱柱的手性环境中进行色谱分离。供选择地,具体的对映异构体可以通过使用光学活性试剂、底物、催化剂或溶剂进行不对称合成,或通过不对称转化将一个对映异构体转化为另一个来制备。
在以下制备方法及实例中,“Me”是指甲基,“Et”是指乙基,“PE”是指石油醚,“EtOAc”是指乙酸乙酯,“MeOH”是指甲醇,“DMSO-d 6”是指氘代二甲亚砜,“DCM”是指二氯甲烷,“DMAP”是指4-二甲氨基吡啶,“HATU”是指O-(7-氮杂苯并三氮唑基)-N,N,N',N'-四甲基脲鎓六氟磷酸盐,“mL”是指毫升,“mmol”是指毫摩尔,“μM”是指微摩尔,“nM”是指纳摩尔,“℃”是指摄氏度。
实施例1:4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000011
步骤1:4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸甲酯的合成
Figure PCTCN2020094796-appb-000012
将3-氨基-4-甲基苯甲酸(1.65g,10mmol),对甲苯磺酰氯(2.8g,12mmol),吡啶(1.19g,15mmol)和DMAP(0.122g,1mmol)于DCM(40mL)中的反应混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用稀盐酸酸化至pH为3-4。用二氯甲烷(50mL×3)萃取混合物。用水(100mL×2)和食盐水(100mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经柱色谱纯化(硅胶,PE/EtOAc=3:1)得到产物为黄色油状物(2.82g,产率为88%)。
1H NMR(400MHz,DMSO-d 6)δ9.73(s,1H),7.70–7.63(m,2H),7.55(d,J=8.0H,2H),7.36(d,J=8.0Hz,2H),7.28(d,J=7.7Hz,1H),3.81(s,3H),2.36(s,3H),2.03(s,3H)。
MS(ESI+)m/z 319.8[M+H] +
步骤2:4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸的合成
Figure PCTCN2020094796-appb-000013
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸甲酯(2.71g,8.5mmol)和氢氧化钠(1.36g,34mmol)于甲醇(51mL)和水(17mL)中的混合物回流7小时。将产生的混合物减压蒸干,用水(100mL)稀释反应混合物,用浓盐酸酸化至pH=2,用乙酸乙酯(50mL×3)萃取。用水(100mL×2)和食盐水(100mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩至溶液中开始沉淀出固体。将产生混悬液放置1小时,抽滤收集产生的固体,干燥得到产物为淡黄色固体(2.1g,产率为81%)。
1H NMR(400MHz,DMSO-d 6)δ12.89(br s,1H),9.69(br s,1H),7.66(dd,J=7.8,1.6Hz,1H),7.63(d,J=1.5Hz,1H),7.55(d,J=8.2Hz,2H),7.36(d,J=8.1Hz,2H),7.25(d,J=7.9Hz,1H),2.36(s,3H),2.05(s,3H)。
MS(ESI+)m/z 305.8[M+H] +
步骤3:4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000014
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.153g,0.5mmol),(1-甲基-1H-吡唑-4-基)甲胺(0.073g,0.65mmol),HATU(0.285g,0.75mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(50mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=10:1)纯化得到产物为白色固体(111mg,产率为56%)。
1H NMR(400MHz,DMSO-d 6)δ9.62(s,1H),8.73(t,J=5.7Hz,1H),7.62(d,J=1.8Hz,1H),7.60–7.56(m,2H),7.52(d,J=8.3Hz,2H),7.37–7.30(m,3H),7.18(d,J=8.0Hz,1H),4.24(d,J=5.7Hz,2H),3.78(s,3H),2.36(s,3H),1.93(s,3H)。
MS(ESI+)m/z 399.3[M+H] +
实施例2:N-((1-乙基-1H-吡唑-4-基)甲基)-4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000015
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.153g,0.5mmol),(1-乙基-1H-吡唑-4-基)甲胺(0.063g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(50mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(115mg,产率为56%).
1H NMR(400MHz,DMSO-d 6)δ9.62(s,1H),8.73(t,J=5.7Hz,1H),7.65–7.60(m,2H),7.58(dd,J=7.9,1.8Hz,1H),7.52(d,J=8.3Hz,2H),7.37–7.30(m,3H),7.18(d,J=8.0Hz,1H),4.25(d,J=5.7Hz,2H),4.07(q,J=7.3Hz,2H),2.36(s,3H),1.93(s,3H),1.33(t,J=7.3Hz,3H)。
MS(ESI+)m/z 412.8[M+H] +
实施例3:4-甲基-3-((4-甲基苯基)磺酰氨基)-N-((1-丙基-1H-吡唑-4-基)甲基)-苯甲酰胺
Figure PCTCN2020094796-appb-000016
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.153g,0.5mmol),(1-丙基-1H-吡唑-4-基)甲胺(0.070g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(50mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(83mg,产率为39%)。
1H NMR(400MHz,DMSO-d 6)δ9.62(s,1H),8.73(t,J=5.7Hz,1H),7.63(d,J=1.5Hz,1H),7.61–7.56(m,2H),7.52(d,J=8.3Hz,2H),7.36–7.30(m,3H),7.18(d,J=8.0Hz,1H),4.25(d,J=5.7Hz,2H),3.99(t,J=7.0Hz,2H),2.36(s,3H),1.93(s,3H),1.80–1.68(m,2H),0.81(t,J=7.4Hz,3H)。
MS(ESI+)m/z 426.8[M+H] +
实施例4:N-((1-异丙基-1H-吡唑-4-基)甲基)-4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000017
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.153g,0.5mmol),(1-异丙基-1H-吡唑-4-基)甲胺(0.070g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(50mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(127mg,产率为60%)。
1H NMR(400MHz,DMSO-d 6)δ9.62(s,1H),8.73(t,J=5.7Hz,1H),7.66–7.62(m,2H),7.59(dd,J=7.9,1.8Hz,1H),7.52(d,J=8.3Hz,2H),7.37–7.30(m,3H),7.18(d,J=8.0Hz,1H),4.48–4.40(m,1H),4.26(d,J=5.7Hz,2H),2.36(s,3H),1.93(s,3H),1.38(d,J=6.7Hz,6H)。
MS(ESI+)m/z 426.8[M+H] +
实施例5:3-((4-乙基苯基)磺酰氨基)-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000018
步骤1:3-((4-乙基苯基)磺酰氨基)-4-甲基苯甲酸甲酯的合成
Figure PCTCN2020094796-appb-000019
将3-氨基-4-甲基苯甲酸甲酯(1.652g,10mmol),4-乙基苯磺酰氯(2.456g,12mmol),吡啶(1.186g,15mmol)和DMAP(0.244g,2mmol)于DCM(50mL)中的反应混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用稀盐酸酸化至pH值为3。用二氯甲烷(50mL×3)萃取混合物。用水(50mL×2)和食盐水(50mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经快速柱色谱纯化(硅胶,PE/EtOAc=5:1然后3:1)得到产物为黄色固体(2.994g,产率为90%)。
1H NMR(400MHz,DMSO-d 6)δ9.71(s,1H),7.67(dd,J=7.9,1.7Hz,1H),7.60(d,J=1.6Hz,1H),7.56(d,J=8.2Hz,2H),7.39(d,J=8.1Hz,2H),7.28(d,J=8.0Hz,1H),3.80(s,3H),2.67(q,J=7.6Hz,2H),2.04(s,3H),1.17(t,J=7.6Hz,3H)。
MS(ESI+)m/z 333.8[M+H] +
步骤2:3-((4-乙基苯基)磺酰氨基)-4-甲基苯甲酸的合成
Figure PCTCN2020094796-appb-000020
将3-((4-乙基苯基)磺酰氨基)-4-甲基苯甲酸甲酯(2.2g,6.6mmol),氢氧化锂一水合物(1.109g,26mmol),四氢呋喃(13mL),甲醇(3.3mL)和水(6.6mL)的混合物在室温下搅拌过夜。用水(150mL)稀释反应混合物,用浓盐酸酸化至pH值=2,用乙酸乙酯(100mL×3)萃取。用水(100mL)和食盐水(100mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩至干,得到产物为白色固体(2.083g,产率为99%)。
1H NMR(400MHz,DMSO-d 6)δ12.86(br s,1H),9.65(br s,1H),7.65(dd,J=7.9,1.8Hz,1H),7.60–7.53(m,3H),7.39 (d,J=8.3Hz,2H),7.25(d,J=8.0Hz,1H),2.66(q,J=7.6Hz,2H),2.04(s,3H),1.17(t,J=7.6Hz,3H)。
MS(ESI+)m/z 320.0[M+H] +
步骤3:3-((4-乙基苯基)磺酰氨基)-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000021
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.096g,0.3mmol),(1-甲基-1H-吡唑-4-基)甲胺(0.043g,0.39mmol,),HATU(0.171g,0.45mmol)和三乙胺(0.091g,0.9mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(50mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=20:1)纯化得到产物为白色固体(66mg,产率53%)。
1H NMR(400MHz,DMSO-d 6)δ9.61(s,1H),8.73(t,J=5.6Hz,1H),7.62(d,J=1.8Hz,1H),7.60-7.52(m,4H),7.37(d,J=8.5Hz,2H),7.32(d,J=0.5Hz,1H),7.18(d,J=8.0Hz,1H),4.24(d,J=5.6Hz,2H),3.78(s,3H),2.66(q,J=7.6Hz,2H),1.92(s,3H),1.17(t,J=7.6Hz,3H).
MS(ESI+)m/z 412.8[M+H] +.
实施例6:3-((4-环丙基苯基)磺酰氨基)-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000022
步骤1:3-((4-环丙基苯基)磺酰氨基)-4-甲基苯甲酸甲酯的合成
Figure PCTCN2020094796-appb-000023
将3-氨基-4-甲基苯甲酸甲酯(0.330g,2mmol),4-环丙基苯磺酰氯(0.455g,2.1mmol),吡啶(0.206g,2.6mmol)和DMAP(0.049g,0.4mmol)于DCM(10mL)中的反应混合物在室温下搅拌过夜。用 水(30mL)稀释反应混合物,用1M盐酸溶液调pH值为2-3,用二氯甲烷(30mL×2)萃取水层。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经柱色谱(硅胶,DCM/MeOH=200:1)纯化得到产物为黄色固体(0.572g,产率为83%)。
1H NMR(400MHz,DMSO-d 6)δ9.69(s,1H),7.66(dd,J=7.9,1.7Hz,1H),7.60(d,J=1.7Hz,1H),7.50(d,J=8.4Hz,2H),7.28(d,J=8.0Hz,1H),7.23(d,J=8.4Hz,2H),3.80(s,3H),2.03(s,3H),2.02–1.94(m,1H),1.12–0.96(m,2H),0.81–0.68(m,2H)。
MS(ESI+)m/z 345.8[M+H] +
步骤2:3-((4-环丙基苯基)磺酰氨基)-4-甲基苯甲酸的合成
Figure PCTCN2020094796-appb-000024
将3-((4-环丙基苯基)磺酰氨基)-4-甲基苯甲酸甲酯(0.570g,1.65mmol)和氢氧化锂一水合物(0.174g,4.2mmol),四氢呋喃(4mL),甲醇(0.75mL)和水(1.5mL)中的混合物在室温下搅拌过夜。用水(50mL)稀释反应混合物,用浓盐酸酸化水层至pH=2,用乙酸乙酯(30mL×3)萃取。用水(50mL×2)和食盐水(50mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩至干,得到产物为白色固体(0.496g,产率为91%)。
1H NMR(400MHz,DMSO-d 6)δ12.85(s,1H),9.63(s,1H),7.64(dd,J=7.9,1.7Hz,1H),7.58(d,J=1.7Hz,1H),7.50(d,J=8.4Hz,2H),7.29–7.19(m,3H),2.04(s,3H),2.08–1.94(m,1H),1.08–1.00(m,2H),0.78–0.70(m,2H)。
MS(ESI+)m/z 331.8[M+H] +
步骤3:3-((4-环丙基苯基)磺酰氨基)-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000025
将4-甲基-3-((4-环丙基苯基)磺酰氨基)苯甲酸(0.099g,0.3mmol),(1-甲基-1H-吡唑-4-基)甲胺(0.054g,0.39mmol),HATU(0.171g,0.45mmol)和三乙胺(0.091g,0.9mmol)于DCM(10mL)中的 反应混合物搅拌过夜。加水(50mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=10:1)纯化得到产物为白色固体(107mg,产率84%)。
1H NMR(400MHz,DMSO-d 6)δ9.59(s,1H),8.73(t,J=5.7Hz,1H),7.62(d,J=1.8Hz,1H),7.60–7.54(m,2H),7.49(d,J=8.4Hz,2H),7.33(d,J=0.5Hz,1H),7.21(d,J=8.4Hz,2H),7.17(d,J=8.1Hz,1H),4.24(d,J=5.7Hz,2H),3.78(s,3H),2.04–1.94(m,1H),1.93(s,3H),1.10–0.96(m,2H),0.79–0.67(m,2H)。
MS(ESI+)m/z 424.8[M+H] +
实施例7:3-((4-甲氧苯基)磺酰胺基)-4-甲基-N-((1-甲基-1H-吡唑-4基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000026
步骤1:3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺的合成的合成
Figure PCTCN2020094796-appb-000027
将3-氨基-4-甲基苯甲酸(1.512g,10mmol),(1-甲基-1H-吡唑-4-基)甲胺(1.112g,10mmol),HATU(4.562g,12mmol)和三乙胺(3.04g,30mmol)于DCM(100mL)中的反应混合物搅拌过夜。加入水(150mL),用DCM萃取产生的混合物(100mL×3).合并有机层,水洗(100mL×1),盐水洗(100mL×1),干燥,过滤,浓缩。残留物经快速柱色谱纯化(硅胶,DCM/MeOH=30:1)得到产物为白色固体(1.482g,产率为67%)。
1H NMR(400MHz,DMSO-d 6)δ8.47(t,J=5.7Hz,1H),7.55(s,1H),7.32(d,J=0.4Hz,1H),7.09(d,J=1.4Hz,1H),6.98–6.90(m,2H),4.96(s,2H),4.22(d,J=5.8Hz,2H),3.77(s,3H),2.07(s,3H)。
MS(ESI+)m/z 244.9[M+H] +
步骤2:3-((4-甲氧苯基)磺酰胺基)-4-甲基-N-((1-甲基-1H-吡唑-4基)甲基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000028
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.3mmol),对甲氧基磺酰氯(0.079g,0.36mmol),DMAP(0.007g,0.06mmol)和吡啶(0.036g,0.45mmol)于DCM(5mL)中的反应混合物搅拌过夜。加水(25mL),用DCM(20mL×3)萃取产生的混合物。用水(50mL×2)和食盐水(50mL×2)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(79mg,产率64%)。
1H NMR(400MHz,DMSO-d 6)δ9.53(s,1H),8.73(t,J=5.7Hz,1H),7.62(d,J=1.8Hz,1H),7.59–7.53(m,4H),7.33(d,J=0.4Hz,1H),7.18(d,J=8.1Hz,1H),7.05(d,J=9.0Hz,2H),4.24(d,J=5.7Hz,2H),3.81(s,3H),3.78(s,3H),1.95(s,3H)。
MS(ESI+)m/z 414.8[M+H] +
实施例8:3-((4-乙氧苯基)磺酰胺基)-4-甲基-N-((1-甲基-1H-吡唑-4基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000029
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.3mmol),4-乙氧基苯磺酰氯(0.079g,0.36mmol,),DMAP(0.007g,0.06mmol)和吡啶(0.036g,0.45mmol)于DCM(5mL)中的反应混合物搅拌过夜。加水(25mL),用DCM(20mL×3)萃取产生的混合物。用水(50mL×2)和食盐水(50mL×2)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(91mg,产率71%)。
1H NMR(400MHz,DMSO-d 6)δ9.52(s,1H),8.73(t,J=5.7Hz,1H),7.62(d,J=1.7Hz,1H),7.60–7.51(m,4H),7.33(s,1H),7.18(d,J=8.0Hz,1H),7.03(d,J=8.9Hz,2H),4.24(d,J=5.7Hz,2H),4.08(q,J=7.0Hz,2H),3.78(s,3H),1.95(s,3H),1.33(t,J=7.0Hz,3H)。
MS(ESI+)m/z 428.8[M+H] +
实施例9:3-((4-异丙基苯基)磺酰胺基)-4-甲基-N-((1-甲基-1H-吡唑 -4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000030
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.3mmol),4-异丙基苯磺酰氯(0.079g,0.36mmol),DMAP(0.007g,0.06mmol)和吡啶(0.036g,0.45mmol)于DCM(5mL)中的反应混合物搅拌过夜。加水(25mL),用DCM(20mL×3)萃取产生的混合物。用水(50mL×2)和食盐水(50mL×2)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(81mg,产率63%)。
1H NMR(400MHz,DMSO-d 6)δ9.60(s,1H),8.73(t,J=5.8Hz,1H),7.64–7.50(m,5H),7.40(d,J=8.4Hz,2H),7.32(s,1H),7.18(d,J=8.0Hz,1H),4.23(d,J=5.7Hz,2H),3.78(s,3H),3.04–2.87(m,1H),1.91(s,3H),1.19(d,J=6.9Hz,6H)。
MS(ESI+)m/z 426.8[M+H] +
实施例10:3-((4-氯苯基)磺酰胺基)-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000031
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.3mmol),4-氯苯磺酰氯(0.076g,0.36mmol),DMAP(0.007g,0.06mmol)和吡啶(0.036g,0.45mmol)于DCM(5mL)中的反应混合物搅拌过夜。加水(25mL),用DCM(20mL×3)萃取产生的混合物。用水(50mL×2)和食盐水(50mL×2)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(92mg,产率73%)。
1H NMR(400MHz,DMSO-d 6)δ9.83(s,1H),8.75(t,J=5.6Hz,1H),7.65–7.55(m,7H),7.33(s,1H),7.21(d,J=8.0Hz,1H),4.24(d,J=5.6Hz,2H),3.78(s,3H),1.96(s,3H)。
MS(ESI+)m/z 418.7[M+H] +
实施例11:4-乙基-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000032
步骤1:3-氨基-4-乙基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000033
将3-氨基-4-乙基苯甲酸(0.330g,2.0mmol),(1-甲基-1H-吡唑-4-基)甲胺(0.222g,2.0mmol),HATU(0.912g,2.4mmol)和三乙胺(0.607g,6.0mmol)于DCM(20mL)中的反应混合物搅拌过夜。加入水(40mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经柱色谱(硅胶,DCM/MeOH=70:1然后50:1)纯化得到产物为黄色固体(0.482g,产率为93%)。
MS(ESI+)m/z 259.2[M+H] +
步骤2:4-乙基-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000034
将3-氨基-4-乙基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.129g,0.5mmol),对甲基苯磺酰氯(0.114g,0.6mmol),吡啶(0.059g,0.75mmol)和DMAP(0.012g,0.1mmol)于DCM(10mL)中的混合物在室温下搅拌过夜。加入水(30mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(0.171g,产率为83%)。
1H NMR(400MHz,DMSO-d 6)δ9.62(s,1H),8.72(t,J=5.7Hz,1H),7.62(dd,J=8.0,1.8Hz,1H),7.58–7.50(m,4H),7.37–7.29(m,3H),7.23(d,J=8.1Hz,1H),4.23(d,J=5.7Hz,2H),3.78(s,3H),2.42(q,J=7.5Hz,2H),2.36(s,3H),0.91(t,J=7.5Hz,3H)。
MS(ESI+)m/z 413.2[M+H] +
实施例12:N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000035
步骤1:3-((4-甲基苯基)磺酰氨基)苯甲酸甲酯的合成
Figure PCTCN2020094796-appb-000036
将3-氨基苯甲酸甲酯(0.756g,5mmol),对甲苯磺酰氯(1.144g,6mmol),吡啶(0.593g,7.5mmol)和DMAP(0.122g,1mmol)于DCM(20mL)中的反应混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用稀盐酸酸化至pH值=5。用二氯甲烷(50mL×2)萃取混合物。用水(50mL×2)和食盐水(50mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经快速柱色谱纯化(硅胶,PE/EtOAc=2:1)得到产物为白色固体(1.511g,产率为99%)。
1H NMR(400MHz,DMSO-d 6)δ10.51(s,1H),7.75–7.72(m,1H),7.66(d,J=8.3Hz,2H),7.62–7.58(m,1H),7.41–7.37(m,2H),7.35(d,J=8.1Hz,2H),3.82(s,3H),2.32(s,3H).MS(ESI+)m/z 306.1[M+H] +
步骤2:3-((4-甲基苯基)磺酰氨基)苯甲酸的合成
Figure PCTCN2020094796-appb-000037
将-3-((4-甲基苯基)磺酰氨基)苯甲酸甲酯(1.500g,4.9mmol),氢氧化锂(0.821g,19.5mmol),四氢呋喃(15mL),甲醇(3mL)和水(6mL)的混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用浓盐酸酸化至pH值=2,用乙酸乙酯(50mL×2)萃取。用水(100mL×2)和食盐水(100mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩至干,得到产物为白色固体(1.431g,产率为97%)。
1H NMR(400MHz,DMSO-d 6)δ13.02(s,1H),10.45(s,1H),7.71–7.68(m,1H),7.64(d,J=8.3Hz,2H),7.60–7.56(m,1H),7.39–7.30(m,4H),2.33(s,3H)。
MS(ESI+)m/z 292.1[M+H] +
步骤3:N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000038
将3-((4-甲基苯基)磺酰氨基)苯甲酸(0.146g,0.5mmol),(1-甲基-1H-吡唑-4-基)甲胺(0.056g,0.5mmol),HATU(0.228g,0.60mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(114mg,产率为59%)。
1H NMR(400MHz,DMSO-d 6)δ10.36(s,1H),8.76(t,J=5.7Hz,1H),7.64(d,J=8.0Hz,2H),7.58(t,J=1.9Hz,1H),7.56(s,1H),7.49–7.45(m,1H),7.33(d,J=8.0Hz,2H),7.32(s,1H),7.28(t,J=7.8Hz,1H),7.22(ddd,J=8.1,2.2,1.0Hz,1H),4.23(d,J=5.7Hz,2H),3.77(s,3H),2.32(s,3H)。
MS(ESI+)m/z 385.1[M+H] +
实施例13:3-氯-N-((1-甲基-1H-吡唑-4-基)甲基)-5-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000039
步骤1:3-氯-5-((4-甲基苯基)磺酰氨基)苯甲酸甲酯的合成
Figure PCTCN2020094796-appb-000040
将3-氨基-5-氯苯甲酸甲酯(0.928g,5mmol),对甲苯磺酰氯(1.144g,6mmol),吡啶(0.593g,7.5mmol)和DMAP(0.122g,1mmol)于DCM(20mL)中的反应混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用稀盐酸酸化至pH值为5。用二氯甲烷(50mL×3)萃取混合物。用水(50mL×2)和食盐水(50mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经快速柱色谱纯化(硅胶,PE/EtOAc=3:1)得到产物为黄色固体(1.649g,产率为97%)。
1H NMR(400MHz,DMSO-d 6)δ10.81(s,1H),7.71–7.66(m,3H),7.55(t,J=2.0Hz,1H),7.41–7.36(m,3H),3.83(s,3H),2.34(s,3H)。
MS(ESI+)m/z 340.0[M+H] +
步骤2:3-氯-5-((4-甲基苯基)磺酰氨基)苯甲酸的合成
Figure PCTCN2020094796-appb-000041
将3-氯-5-((4-甲基苯基)磺酰氨基)苯甲酸甲酯(1.600g,4.71mmol),氢氧化锂(0.791g,19mmol),四氢呋喃(15mL),甲醇(3mL)和水(6mL)的混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用浓盐酸酸化至pH值为2,用乙酸乙酯(50mL×2)萃取。用水(100mL×2)和食盐水(100mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩至干,得到产物为白色固体(1.54g,产率为100%)。
1H NMR(400MHz,DMSO-d 6)δ13.44(br s,1H),10.77(br s,1H),7.68(d,J=8.3Hz,2H),7.65(dd,J=2.0,1.6Hz,1H),7.55–7.50(m,1H),7.39(d,J=8.1Hz,2H),7.34(t,J=2.0Hz,1H),2.34(s,3H)。
MS(ESI+)m/z 326.0[M+H] +
步骤3:3-氯-N-((1-甲基-1H-吡唑-4-基)甲基)-5-((4-甲基苯基)磺酰氨基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000042
将3-氯-5-((4-甲基苯基)磺酰氨基)苯甲酸(0.163g,0.5mmol),(1-甲基-1H-吡唑-4-基)甲胺(0.056g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(0.120g,产率为57%)。
1H NMR(400MHz,DMSO-d 6)δ10.67(s,1H),8.88(t,J=5.7Hz,1H),7.67(d,J=8.3Hz,2H),7.60–7.52(m,3H),7.37 (d,J=8.1Hz,2H),7.32(s,1H),7.24(t,J=2.0Hz,1H),4.23(d,J=5.6Hz,2H),3.77(s,3H),2.34(s,3H)。
MS(ESI+)m/z 419.1[M+H] +
实施例14:3-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)-5-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000043
步骤1:3-甲基-5-((4-甲基苯基)磺酰氨基)苯甲酸甲酯的合成
Figure PCTCN2020094796-appb-000044
将3-氨基-5-甲基苯甲酸甲酯(0.826g,5mmol),对甲苯磺酰氯(1.144g,6mmol),吡啶(0.593g,7.5mmol)和DMAP(0.122g,1mmol)于DCM(20mL)中的反应混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用稀盐酸酸化至pH值为5。用二氯甲烷(50mL×2)萃取混合物。用水(50mL×2)和食盐水(50mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经快速柱色谱纯化(硅胶,PE/EtOAc=2:1)得到产物为白色固体(1.579g,产率为99%)。
1H NMR(400MHz,DMSO-d 6)δ10.43(s,1H),7.65(d,J=8.3Hz,2H),7.53(s,1H),7.43(s,1H),7.35(d,J=8.1Hz,2H),7.18(s,1H),3.80(s,3H),2.32(s,3H),2.26(s,3H)。
MS(ESI+)m/z 320.1[M+H] +
步骤2:3-甲基-5-((4-甲基苯基)磺酰氨基)苯甲酸的合成
Figure PCTCN2020094796-appb-000045
将3-甲基-5-((4-甲基苯基)磺酰氨基)苯甲酸甲酯(1.550g,4.85mmol),氢氧化锂(0.815g,19.4mmol),四氢呋喃(15mL),甲醇(3mL)和水(6mL)的混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用浓盐酸酸化至pH值=2,用乙酸乙酯(50mL×2)萃取。用水(100mL×2)和食盐水(100mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩至干,得到产物为白色固体(1.492g, 产率为100%)。
1H NMR(400MHz,DMSO-d 6)δ12.96(s,1H),10.39(s,1H),7.66(d,J=8.3Hz,2H),7.51(t,J=1.3Hz,1H),7.41(s,1H),7.35(d,J=8.0Hz,2H),7.16(s,1H),2.33(s,3H),2.26(s,3H)。
步骤3:3-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)-5-((4-甲基苯基)磺酰氨基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000046
将3-甲基-5-((4-甲基苯基)磺酰氨基)苯甲酸(0.153g,0.5mmol),(1-甲基-1H-吡唑-4-基)甲胺(0.056g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(0.107g,产率为54%)。
1H NMR(400MHz,DMSO-d 6)δ10.28(s,1H),8.68(t,J=5.7Hz,1H),7.64(d,J=8.3Hz,2H),7.55(s,1H),7.38(s,1H),7.36–7.28(m,4H),7.04(s,1H),4.21(d,J=5.7Hz,2H),3.77(s,3H),2.32(s,3H),2.23(s,3H)。
MS(ESI+)m/z 399.1[M+H] +
实施例15:3-氟-N-((1-甲基-1H-吡唑-4-基)甲基)-5-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000047
步骤1:3-氟-5-((4-甲基苯基)磺酰氨基)苯甲酸甲酯的合成
Figure PCTCN2020094796-appb-000048
将3-氨基-5-氟苯甲酸甲酯(0.846g,5mmol),对甲苯磺酰氯(1.144g,6mmol),吡啶(0.593g,7.5mmol)和DMAP(0.122g,1mmol)于DCM(20mL)中的反应混合物在室温下搅拌过夜。用水(100 mL)稀释反应混合物,用稀盐酸酸化至pH值为5。用二氯甲烷(50mL×2)萃取混合物。用水(50mL×2)和食盐水(50mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经快速柱色谱纯化(硅胶,PE/EtOAc=4:1)得到产物为白色固体(1.566g,产率为97%)。
1H NMR(400MHz,DMSO-d 6)δ10.82(s,1H),7.70(d,J=8.3Hz,2H),7.57–7.55(m,1H),7.38(d,J=8.1Hz,2H),7.35–7.31(m,1H),7.21–7.16(m,1H),3.83(s,3H),2.34(s,3H)。
MS(ESI+)m/z 324.1[M+H] +
步骤2:3-氟-5-((4-甲基苯基)磺酰氨基)苯甲酸的合成
Figure PCTCN2020094796-appb-000049
将3-氟-5-((4-甲基苯基)磺酰氨基)苯甲酸甲酯(1.550g,4.8mmol),氢氧化锂(0.805g,19mmol),四氢呋喃(15mL),甲醇(3mL)和水(6mL)的混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用浓盐酸酸化至pH值=2,用乙酸乙酯(50mL×2)萃取。用水(100mL×2)和食盐水(100mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩至干,得到产物为白色固体(1.465g,产率为99%)。
1H NMR(400MHz,DMSO-d 6)δ13.38(br s,1H),10.78(br s,1H),7.69(d,J=8.3Hz,2H),7.55–7.49(d,J=1.6Hz,1H),7.38(d,J=8.1Hz,2H),7.29(ddd,J=8.9,2.4,1.3Hz,1H),7.15(dt,J=10.4,2.3Hz,1H),2.34(s,3H)。
MS(ESI+)m/z 310.0[M+H] +
步骤3:3-氟-N-((1-甲基-1H-吡唑-4-基)甲基)-5-((4-甲基苯基)磺酰氨基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000050
将3-氟-5-((4-甲基苯基)磺酰氨基)苯甲酸(0.155g,0.5mmol),(1-甲基-1H-吡唑-4-基)甲胺(0.056g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水 硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(0.134g,产率为67%)。
1H NMR(400MHz,DMSO-d 6)δ10.68(s,1H),8.83(t,J=5.7Hz,1H),7.68(d,J=8.3Hz,2H),7.57(s,1H),7.42(t,J=1.6Hz,1H),7.37(d,J=8.0Hz,2H),7.34–7.29(m,2H),7.04(dt,J=10.4,2.2Hz,1H),4.23(d,J=5.6Hz,2H),3.77(s,3H),2.33(s,3H)。
MS(ESI+)m/z 403.1[M+H] +
实施例16:4-氟-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000051
步骤1:4-氟-3-((4-甲基苯基)磺酰氨基)苯甲酸甲酯的合成
Figure PCTCN2020094796-appb-000052
将3-氨基-4-氟苯甲酸甲酯(0.846g,5mmol),对甲苯磺酰氯(1.144g,6mmol),吡啶(0.593g,7.5mmol)和DMAP(0.122g,1mmol)于DCM(20mL)中的反应混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用稀盐酸酸化至pH值为5。用二氯甲烷(50mL×2)萃取混合物。用水(50mL×2)和食盐水(50mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经快速柱色谱纯化(硅胶,PE/EtOAc=4:1)得到产物为白色固体(1.592g,产率为98%)。
1H NMR(400MHz,DMSO-d 6)δ10.39(s,1H),7.89(dd,J=7.7,2.2Hz,1H),7.81–7.74(m,1H),7.62(d,J=8.3Hz,2H),7.37(d,J=8.4Hz,2H),7.31(dd,J=10.1,8.6Hz,1H),3.84(s,3H),2.36(s,3H)。
MS(ESI+)m/z 324.1[M+H] +
步骤2:4-氟-3-((4-甲基苯基)磺酰氨基)苯甲酸的合成
Figure PCTCN2020094796-appb-000053
将4-氟-3-((4-甲基苯基)磺酰氨基)苯甲酸甲酯(1.580g,4.9mmol),氢氧化锂(0.821g,19.5mmol),四氢呋喃(15mL),甲 醇(3mL)和水(6mL)的混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用浓盐酸酸化至pH值为2,用乙酸乙酯(50mL×2)萃取。用水(100mL×2)和食盐水(100mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩至干,得到产物为白色固体(1.498g,产率为97%)。
1H NMR(400MHz,DMSO-d 6)δ13.13(br s,1H),10.32(br s,1H),7.85(dd,J=7.7,2.1Hz,1H),7.77–7.70(m,1H),7.61(d,J=8.3Hz,2H),7.36(d,J=8.1Hz,2H),7.28(dd,J=10.1,8.6Hz,1H),2.36(s,3H)。
MS(ESI+)m/z[M+H] +
步骤3:4-氟-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000054
将4-氟-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.155g,0.5mmol),(1-甲基-1H-吡唑-4-基)甲胺(0.056g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(0.097g,产率为48%)。
1H NMR(400MHz,DMSO-d 6)δ10.24(s,1H),8.86(t,J=5.7Hz,1H),7.84(dd,J=7.7,2.2Hz,1H),7.68(ddd,J=8.5,4.5,2.2Hz,1H),7.63–7.54(m,3H),7.37–7.31(m,3H),7.23(dd,J=10.0,8.7Hz,1H),4.25(d,J=5.6Hz,2H),3.78(s,3H),2.35(s,3H)。
MS(ESI+)m/z 403.1[M+H] +
实施例17:4-氯-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000055
步骤1:4-氯-3-((4-甲基苯基)磺酰氨基)苯甲酸甲酯
Figure PCTCN2020094796-appb-000056
将3-氨基-4-氯苯甲酸甲酯(0.928g,5mmol),对甲苯磺酰氯(1.144g,6mmol),吡啶(0.593g,7.5mmol)和DMAP(0.122g,1mmol)于DCM(20mL)中的反应混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用稀盐酸酸化至pH=5。用二氯甲烷(50mL×2)萃取混合物。用水(50mL×2)和食盐水(50mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经快速柱色谱纯化(硅胶,PE/EtOAc=2:1)得到产物为白色固体(1.226g,产率为72%)。
1H NMR(400MHz,DMSO-d 6)δ10.19(s,1H),7.86(d,J=2.0Hz,1H),7.73(dd,J=8.4,2.1Hz,1H),7.61(d,J=8.3Hz,2H),7.56(d,J=8.4Hz,1H),7.37(d,J=8.1Hz,2H),3.85(s,3H),2.37(s,3H).
MS(ESI+)m/z 339.9[M+H] +.
步骤2:4-氯-3-((4-甲基苯基)磺酰氨基)苯甲酸的合成
Figure PCTCN2020094796-appb-000057
将4-氯-3-((4-甲基苯基)磺酰氨基)苯甲酸甲酯(1.226g,3.6mmol),氢氧化锂(0.605g,14.4mmol),四氢呋喃(15mL),甲醇(3mL)和水(6mL)的混合物在室温下搅拌过夜。用水(100mL)稀释反应混合物,用浓盐酸酸化至pH=3,用乙酸乙酯(50mL×2)萃取。用水(100mL×2)和食盐水(100mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩至干,得到产物为白色固体(1.057g,产率为90%)。
1H NMR(400MHz,DMSO-d 6)δ13.26(br s,1H),10.18(br s,1H),7.85(d,J=2.0Hz,1H),7.72(dd,J=8.3,2.1Hz,1H),7.61(d,J=8.3Hz,2H),7.53(d,J=8.4Hz,1H),7.37(d,J=8.2Hz,2H),2.37(s,3H).
步骤3:4-氯-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺的合成
Figure PCTCN2020094796-appb-000058
将4-氯-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.155g,0.5mmol), (1-甲基-1H-吡唑-4-基)甲胺(0.056g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(0.103g,产率为49%)。
1H NMR(400MHz,DMSO-d 6)δ10.05(s,1H),8.91(t,J=5.7Hz,1H),7.84(d,J=2.0Hz,1H),7.66(dd,J=8.4,2.1Hz,1H),7.61–7.55(m,3H),7.48(d,J=8.4Hz,1H),7.38–7.31(m,3H),4.25(d,J=5.6Hz,2H),3.78(s,3H),2.36(s,3H)。
MS(ESI+)m/z 419.1[M+H] +
实施例18:3-((6-甲氧基吡啶)-3-磺酰胺基)-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000059
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.3mmol),6-甲氧基吡啶-3-磺酰氯(0.075g,0.36mmol),DMAP(0.007g,0.06mmol)和吡啶(0.036g,0.45mmol)于DCM(5mL)中的反应混合物搅拌过夜。加水(25mL),用DCM(20mL×3)萃取产生的混合物。用水(50mL×2)和食盐水(50mL×2)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,EtOAc/MeOH=10:1)纯化得到产物为白色固体(106mg,产率85%)。
1H NMR(400MHz,DMSO-d 6)δ9.79(s,1H),8.76(t,J=5.7Hz,1H),8.36(d,J=2.5Hz,1H),7.88(dd,J=8.8,2.6Hz,1H),7.62(dd,J=7.9,1.8Hz,1H),7.57(d,J=2.0Hz,2H),7.32(s,1H),7.23(d,J=8.0Hz,1H),6.98(dd,J=8.8,0.4Hz,1H),4.24(d,J=5.7Hz,2H),3.91(s,3H),3.78(s,3H),2.03(s,3H)。
MS(ESI+)m/z 415.8[M+H] +
实施例19:4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((6-甲基吡啶)-3-磺酰胺基)苯甲酰胺
Figure PCTCN2020094796-appb-000060
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.3mmol),6-甲基吡啶-3-磺酰氯(0.069g,0.36mmol),DMAP(0.007g,0.06mmol)和吡啶(0.036g,0.45mmol)于DCM(5mL)中的反应混合物搅拌过夜。加水(25mL),用DCM(20mL×3)萃取产生的混合物。用水(50mL×2)和食盐水(50mL×2)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,EtOAc/MeOH=10:1)纯化得到产物为白色固体(88mg,产率73%)。
1H NMR(400MHz,DMSO-d 6)δ9.85(s,1H),8.72(t,J=5.7Hz,1H),8.58(d,J=2.2Hz,1H),7.83(dd,J=8.2,2.5Hz,1H),7.58(dd,J=7.9,1.8Hz,1H),7.53(s,2H),7.40(d,J=8.2Hz,1H),7.28(s,1H),7.18(d,J=8.0Hz,1H),4.20(d,J=5.7Hz,2H),3.74(s,3H),2.50(s,3H),1.94(s,3H)。
MS(ESI+)m/z 399.8[M+H] +
实施例20:4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((5-甲基噻吩)-2-磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000061
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.3mmol),5-甲基噻吩-2-磺酰氯(0.070g,0.36mmol),DMAP(0.007g,0.06mmol)和吡啶(0.036g,0.45mmol)于DCM(5mL)中的反应混合物搅拌过夜。加水(25mL),用DCM(20mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL×2)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(100mg,产率83%)。
1H NMR(400MHz,DMSO-d 6)δ9.81(s,1H),8.75(t,J=5.7Hz,1H),7.66(d,J=1.8Hz,1H),7.62(dd,J=8.0,1.8Hz,1H),7.58(s,1H),7.30(s,1H),7.23(d,J=8.0Hz,1H),7.18(d,J=3.6Hz,1H),6.84(d,J=3.6Hz,1H),4.25(d,J=5.7Hz,2H),3.78(s,3H),2.46(s,3H),2.03(s,3H)。
MS(ESI+)m/z 404.8[M+H] +
实例21:3-((2,3-二氢苯并[b][1,4]二氧杂环己烯基)-6-磺酰氨基)-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000062
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.3mmol),2,3-二氢苯并[b][1,4]二氧杂环己烯-6-磺酰氯(0.084g,0.36mmol),DMAP(0.007g,0.06mmol)和吡啶(0.036g,0.45mmol)于DCM(5mL)中的反应混合物搅拌过夜。加水(25mL),用DCM(20mL×3)萃取产生的混合物。用水(50mL×2)和食盐水(50mL×2)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,EtOAc/MeOH=10:1)纯化得到产物为白色泡沫状固体(105mg,产率79%)。
1H NMR(400MHz,DMSO-d 6)δ9.54(s,1H),8.73(t,J=5.6Hz,1H),7.60–7.55(m,3H),7.32(s,1H),7.20(d,J=8.9Hz,1H),7.11–7.06(m,2H),7.01–6.95(m,1H),4.33–4.22(m,6H),3.78(s,3H),2.00(s,3H)。
MS(ESI+)m/z 442.8[M+H] +
实施例22:3-((2,3-二氢-1H-茚)-5-磺酰氨基)-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000063
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.095g,0.39mmol),2,3-二氢-1H-茚-5-磺酰氯(0.102g,0.47mmol),DMAP(0.010g,0.08mmol)和吡啶(0.047g,0.59mmol)于DCM(5mL)中的反应混合物搅拌过夜。加水(25mL),用DCM(20mL×3)萃取产生的混合物。用水(50mL×2)和食盐水(50mL×2)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,EtOAc/MeOH=10:1)纯化得到产物为白色固体(70mg,产率55%)。
1H NMR(400MHz,DMSO-d 6)δ9.56(s,1H),8.73(t,J=5.7Hz,1H),7.60(d,J=1.7Hz,1H),7.59–7.55(m,2H),7.48(s,1H),7.40(dd,J=7.9,1.7Hz,1H),7.35(d,J=8.0Hz,1H),7.32(s,1H),7.19(d,J=8.0Hz,1H),4.23(d,J=5.7 Hz,2H),3.78(s,3H),2.90(t,J=7.5Hz,2H),2.85(t,J=7.5Hz,2H),2.10–1.99(m,2H),1.98(d,J=5.9Hz,3H)。
实施例23:3-(苯并[d][1,3]二氧杂环戊烯-5-磺酰氨基)-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000064
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.3mmol),苯并[d][1,3]间二氧杂环戊烯-5-磺酰氯(0.079g,0.36mmol),DMAP(0.007g,0.06mmol)和吡啶(0.036g,0.45mmol)于DCM(5mL)中的反应混合物搅拌过夜。加水(25mL),用DCM(20mL×3)萃取产生的混合物。用水(50mL×2)和食盐水(50mL×2)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,EtOAc/MeOH=10:1)纯化得到产物为白色固体(113mg,产率88%)。
1H NMR(400MHz,DMSO-d 6)δ9.57(s,1H),8.74(t,J=5.7Hz,1H),7.63–7.53(m,3H),7.32(d,J=0.6Hz,1H),7.21(dd,J=8.4,0.6Hz,1H),7.14(dd,J=8.2,1.9Hz,1H),7.09(d,J=1.8Hz,1H),7.02(d,J=8.2Hz,1H),6.15(s,2H),4.24(d,J=5.7Hz,2H),3.78(s,3H),2.01(s,3H)。
MS(ESI+)m/z 428.8[M+H] +
实施例24:3-((2,3-二氢苯并呋喃基)-5-磺酰氨基)-4-甲基-N–((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000065
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.3mmol),2,3-二氢苯并呋喃-5-磺酰氯(0.079g,0.36mmol),DMAP(0.007g,0.06mmol)和吡啶(0.036g,0.45mmol)于DCM(5mL)中的反应混合物搅拌过夜。加水(25mL),用DCM(20mL×3)萃取产生的混合物。用水(50mL×2)和食盐水(50mL×2)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,EtOAc/MeOH=10:1)纯化得到产物为白色固体(90mg,产率70%)。
1H NMR(400MHz,DMSO-d 6)δ9.46(s,1H),8.73(t,J=5.7Hz,1H),7.58(dt,J=7.8,2.5Hz,3H),7.50–7.46(m,1H),7.38(dd,J=8.5,2.1Hz,1H),7.32(s,1H),7.19(d,J=7.9Hz,1H),6.85(d,J=8.4Hz,1H),4.62(t,J=8.8Hz,2H),4.24(d,J=5.7Hz,2H),3.78(s,3H),3.18(t,J=8.8Hz,2H),2.00(s,3H)。
MS(ESI+)m/z 426.5[M+H] +
对比例1:4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)-3-(苯基磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000066
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.30mmol),苯磺酰氯(0.064g,0.36mmol),吡啶(0.036g,0.45mmol)和DMAP(0.007g,0.06mmol)于DCM(5mL)中的反应混合物搅拌过夜。用水(30mL)稀释滤液。用DCM(20mL×3)萃取产生的混合物。用水(20mL×1)和食盐水(20mL×1)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(94mg,产率82%)。
1H NMR(400MHz,DMSO-d 6)δ9.70(s,1H),8.73(t,J=5.7Hz,1H),7.67–7.50(m,8H),7.32(s,1H),7.18(d,J=7.7Hz,1H),4.24(d,J=5.7Hz,2H),3.78(s,3H),1.92(s,3H)。
MS(ESI+)m/z 384.8[M+H] +
对比例2:4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((3-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000067
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.30mmol),3-甲基苯磺酰氯(0.069g,0.36mmol),吡啶(0.036g,0.45mmol)和DMAP(0.007g,0.06mmol)于DCM(5mL)中的反应混合物搅拌过夜。用水(30mL)稀释滤液。用DCM(20mL×3)萃取产生的混合物。用水(20mL×1)和食盐水(20mL×1)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经 制备薄层色谱(硅胶,乙酸乙酯/甲醇=10:1)纯化得到产物为白色固体(83mg,产率69%)。
1H NMR(400MHz,DMSO-d 6)δ9.64(s,1H),8.73(t,J=5.7Hz,1H),7.61–7.54(m,3H),7.48–7.38(m,4H),7.32(s,1H),7.19(d,J=8.4Hz,1H),4.23(d,J=5.7Hz,2H),3.78(s,3H),2.32(s,3H),1.95(s,3H)。
MS(ESI+)m/z 398.8[M+H] +
对比例3:4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((2-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000068
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.30mmol),2-甲基苯磺酰氯(0.069g,0.36mmol),吡啶(0.036g,0.45mmol)和DMAP(0.007g,0.06mmol)于DCM(5mL)中的反应混合物搅拌过夜。用水(30mL)稀释滤液。用DCM(20mL×3)萃取产生的混合物。用水(20mL×1)和食盐水(20mL×1)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,乙酸乙酯/甲醇=10:1)纯化得到产物为白色固体(104mg,产率87%)。
1H NMR(400MHz,DMSO-d 6)δ9.72(s,1H),8.71(t,J=5.7Hz,1H),7.62(dd,J=7.9,1.3Hz,1H),7.59–7.54(m,3H),7.50(td,J=7.5,1.4Hz,1H),7.39(d,J=7.5Hz,1H),7.31(d,J=0.4Hz,1H),7.31–7.25(m,1H),7.18(d,J=7.5Hz,1H),4.23(d,J=5.7Hz,2H),3.78(s,3H),2.54(s,3H),1.99(s,3H)。
MS(ESI+)m/z 398.8[M+H] +
对比例4:4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-丙基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000069
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.30mmol),4-丙基苯磺酰氯(0.079g,0.36mmol),吡啶(0.036g,0.45mmol)和DMAP(0.007g,0.06mmol)于DCM(5mL)中的反应混合物搅拌过夜。用水(30mL)稀释滤液。用DCM (20mL×3)萃取产生的混合物。用水(20mL×1)和食盐水(20mL×1)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(100mg,产率78%)。
1H NMR(400MHz,DMSO-d 6)δ9.61(s,1H),8.73(t,J=5.7Hz,1H),7.62(d,J=1.7Hz,1H),7.60–7.55(m,2H),7.53(d,J=8.3Hz,2H),7.34(d,J=8.3Hz,2H),7.32(s,1H),7.17(d,J=8.0Hz,1H),4.23(d,J=5.7Hz,2H),3.78(s,3H),2.61(t,J=7.5Hz,2H),1.90(s,3H),1.64–1.52(m,2H),0.85(t,J=7.3Hz,3H)。
MS(ESI+)m/z 427.2[M+H] +
对比例5:3-((4-氟苯基)磺酰氨基)-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000070
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.30mmol),4-氟苯磺酰氯(0.070g,0.36mmol),吡啶(0.036g,0.45mmol)和DMAP(0.007g,0.06mmol)于DCM(5mL)中的反应混合物搅拌过夜。用水(30mL)稀释滤液。用DCM(20mL×3)萃取产生的混合物。用水(20mL×1)和食盐水(20mL×1)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(87mg,产率72%)。
1H NMR(400MHz,DMSO-d 6)δ9.76(s,1H),8.74(t,J=5.7Hz,1H),7.73–7.65(m,2H),7.60(dd,J=7.9,1.8Hz,1H),7.58–7.55(m,2H),7.43–7.36(m,2H),7.32(s,1H),7.21(d,J=8.0Hz,1H),4.24(d,J=5.7Hz,2H),3.78(s,3H),1.96(s,3H)。
MS(ESI+)m/z 403.1[M+H] +
对比例6:4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)-3-((4-(三氟甲基)苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000071
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.30mmol),4-(三氟甲基)苯磺酰氯(0.088g,0.36mmol),吡啶(0.036g,0.45mmol)和DMAP(0.007g,0.06mmol)于DCM(5mL)中的反应混合物搅拌过夜。用水(30mL)稀释滤液。用DCM(20mL×3)萃取产生的混合物。用水(20mL×1)和食盐水(20mL×1)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(94mg,产率69%)。
1H NMR(400MHz,DMSO-d 6)δ10.01(s,1H),8.76(t,J=5.7Hz,1H),7.96(d,J=8.4Hz,2H),7.85(d,J=8.3Hz,2H),7.63(dd,J=7.9,1.7Hz,1H),7.59(s,1H),7.56(s,1H),7.32(s,1H),7.22(d,J=8.0Hz,1H),4.24(d,J=5.7Hz,2H),3.78(s,3H),1.94(s,3H)。
MS(ESI+)m/z 453.1[M+H] +
对比例7:3-((4-氰基苯基)磺酰氨基)-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000072
将3-氨基-4-甲基-N-((1-甲基-1H-吡唑-4-基)甲基)苯甲酰胺(0.073g,0.30mmol),4-氰基苯磺酰氯(0.073g,0.36mmol),吡啶(0.036g,0.45mmol)和DMAP(0.007g,0.06mmol)于DCM(5mL)中的反应混合物搅拌过夜。用水(30mL)稀释滤液。用DCM(20mL×3)萃取产生的混合物。用水(20mL×1)和食盐水(20mL×1)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(74mg,产率60%)。
1H NMR(400MHz,DMSO-d 6)δ10.06(s,1H),8.76(t,J=5.7Hz,1H),8.05(d,J=8.5Hz,2H),7.80(d,J=8.5Hz,2H),7.63(dd,J=7.9,1.8Hz,1H),7.57(s,1H),7.55(d,J=1.7Hz,1H),7.32(s,1H),7.23(d,J=8.1Hz,1H),4.24(d,J=5.7Hz,2H),3.78(s,3H),1.96(s,3H)。
MS(ESI+)m/z 410.1[M+H] +
对比例8:4-甲基-N-((1-甲基-5-氧代吡咯烷-3-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000073
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.153g,0.5mmol),4-(氨甲基)-1-甲基吡咯烷-2-酮(0.084g,0.65mmol),HATU(0.285g,0.75mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(50mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=10:1)纯化得到产物为白色固体(105mg,产率为51%)。
1H NMR(400MHz,CDCl 3)δ7.80(d,J=1.6Hz,1H),7.65(dd,J=7.9,1.7Hz,1H),7.57(d,J=8.3Hz,2H),7.36(s,1H),7.31(t,J=5.7Hz,1H),7.20(d,J=8.0Hz,2H),7.13(d,J=8.0Hz,1H),3.65–3.48(m,2H),3.48–3.38(m,1H),3.24(dd,J=10.1,5.0Hz,1H),2.83(s,3H),2.81–2.71(m,1H),2.57(dd,J=17.0,9.0Hz,1H),2.38(s,3H),2.34(dd,J=17.1,5.9Hz,1H),1.94(s,3H)。
MS(ESI+)m/z 416.3[M+H] +
对比例9:4-甲基-N-((1-甲基-1H-吡唑-5-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000074
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.153g,0.5mmol),(1-甲基-1H-吡唑-5-基)甲胺(0.073g,0.65mmol),HATU(0.285g,0.75mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(50mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=10:1)纯化得到产物为白色泡沫状固体(119mg,产率为60%)。
1H NMR(400MHz,DMSO-d 6)δ9.64(s,1H),8.90(t,J=5.6Hz,1H),7.65–7.56(m,2H),7.55–7.49(m,2H),7.37–7.29(m,3H),7.20(d,J=7.8Hz,1H),6.12(d,J=1.8Hz,1H),4.47(d,J=5.6Hz,2H),3.80(s,3H),2.36(s,3H),1.95(s,3H)。
MS(ESI+)m/z 399.3[M+H] +
对比例10:N-((1,3-二甲基-1H-吡唑-4-基)甲基)-4-甲基-3-((4-甲基 苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000075
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.153g,0.5mmol),(1,3-二甲基-1H-吡唑-4-基)甲胺(0.063g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(20mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=10:1)纯化得到产物为白色泡沫状固体(133mg,产率为65%)。
1H NMR(400MHz,DMSO-d 6)δ9.61(s,1H),8.62(t,J=5.5Hz,1H),7.62(d,J=1.7Hz,1H),7.57(dd,J=7.9,1.8Hz,1H),7.51(d,J=8.3Hz,2H),7.46(s,1H),7.33(d,J=8.0Hz,2H),7.17(d,J=8.0Hz,1H),4.19(d,J=5.5Hz,2H),3.70(s,3H),2.36(s,3H),2.11(s,3H),1.93(s,3H)。
MS(ESI+)m/z 412.8[M+H] +
对比例11:4-甲基-3-((4-甲基苯基)磺酰氨基)-N-((1,3,5-三甲基-1H-吡唑-4-基)甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000076
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.153g,0.5mmol),(1,3,5-三甲基-1H-吡唑-4-基)甲胺(0.070g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(20mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(109mg,产率为51%)。
1H NMR(400MHz,DMSO-d 6)δ9.61(s,1H),8.50(t,J=5.4Hz,1H),7.59(d,J=1.6Hz,1H),7.55(dd,J=7.9,1.7Hz,1H),7.51(d,J=8.2Hz,2H),7.33(d,J=8.1Hz,2H),7.16(d,J=8.0Hz,1H),4.15(d,J=5.3Hz,2H),3.60(s,3H),2.36(s,3H),2.20(s,3H),2.09(s,3H),1.93(s,3H)。
MS(ESI+)m/z 426.8[M+H] +
对比例12:N-((1,5-二甲基-1H-吡唑-4-基)甲基)-4-甲基-3-((4-甲基 苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000077
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.153g,0.5mmol),(1,5-二甲基-1H-吡唑-4-基)甲胺(0.063g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(20mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(115mg,产率为56%)。
1H NMR(400MHz,DMSO-d 6)δ9.61(s,1H),8.64(t,J=5.6Hz,1H),7.60(d,J=1.7Hz,1H),7.56(dd,J=7.9,1.8Hz,1H),7.51(d,J=8.3Hz,2H),7.33(d,J=8.2Hz,2H),7.24(s,1H),7.17(d,J=8.0Hz,1H),4.19(d,J=5.6Hz,2H),3.68(s,3H),2.36(s,3H),2.22(s,3H),1.93(s,3H).
MS(ESI+)m/z 412.9[M+H] +.
对比例13:4-甲基-3-((4-甲基苯基)磺酰氨基)-N-(吡唑并[1,5-a]吡啶-3-基甲基)苯甲酰胺
Figure PCTCN2020094796-appb-000078
将4-甲基-3-((4-甲基苯基)磺酰氨基)苯甲酸(0.153g,0.5mmol),吡唑并[1,5-a]吡啶-3-基甲胺(0.110g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(30mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(89mg,产率为41%)。
1H NMR(400MHz,DMSO-d 6)δ9.62(s,1H),8.87(t,J=5.7Hz,1H),8.63(d,J=7.0Hz,1H),7.94(s,1H),7.79(d,J=9.0Hz,1H),7.63(d,J=1.8Hz,1H),7.57(dd,J=7.9,1.8Hz,1H),7.51(d,J=8.3Hz,2H),7.32(d,J=8.2Hz,2H),7.25–7.18(m,1H),7.17(d,J=8.0Hz,1H),6.86(t,J=6.8Hz,1H),4.57(d,J=5.7Hz,2H),2.34(s,3H),1.92(s,3H)。
MS(ESI+)m/z 434.8[M+H] +
对比例14:4-甲基-N-((1-甲基-1H-咪唑-4-基)甲基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000079
将3-((4-甲基苯基)磺酰氨基)-4-甲基苯甲酸(0.153g,0.5mmol),(1-甲基-1H-咪唑-4-基)甲胺(0.056g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(20mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(94mg,产率47%)。
1H NMR(400MHz,DMSO-d 6)δ9.61(s,1H),8.70(t,J=5.6Hz,1H),7.63(d,J=1.7Hz,1H),7.60(dd,J=7.9,1.8Hz,1H),7.52(d,J=8.3Hz,2H),7.48(s,1H),7.34(d,J=8.0Hz,2H),7.17(d,J=7.9Hz,1H),6.92(s,1H),4.27(d,J=5.6Hz,2H),3.60(s,3H),2.36(s,3H),1.94(s,3H)。
MS(ESI+)m/z 399.2[M+H] +
对比例15:4-甲基-N-(2-(1-甲基-1H-吡唑-4-基)乙基)-3-((4-甲基苯基)磺酰氨基)苯甲酰胺
Figure PCTCN2020094796-appb-000080
将3-((4-甲基苯基)磺酰氨基)-4-甲基苯甲酸(0.153g,0.5mmol),2-(1-甲基-1H-咪唑-4-基)乙-1-胺盐酸盐(0.063g,0.5mmol),HATU(0.228g,0.6mmol)和三乙胺(0.152g,1.5mmol)于DCM(10mL)中的反应混合物搅拌过夜。加水(30mL),用DCM(20mL×3)萃取产生的混合物。用水(30mL×2)和食盐水(30mL)洗涤合并的有机层,用无水硫酸钠干燥,过滤,浓缩。残留物经制备薄层色谱(硅胶,DCM/MeOH=15:1)纯化得到产物为白色固体(141mg,产率68%)。
1H NMR(400MHz,DMSO-d 6)δ9.62(s,1H),8.47(t,J=5.6Hz,1H),7.62(d,J=1.7Hz,1H),7.58–7.49(m,4H),7.34(d,J=8.1Hz,2H),7.26(s,1H),7.19(d,J=8.0Hz,1H),3.77(s,3H),3.39–3.33(m,2H),2.63(t,J=7.4Hz,2H),2.36(s,3H),1.93(s,3H)。
MS(ESI+)m/z 413.2[M+H] +
药理活性评价
实验例1:MTT法测定肿瘤细胞的存活率
将对数生长期的DU145细胞(人前列腺癌细胞),用0.25%胰酶-EDTA消化后制成单细胞悬液,按1500个/孔/100μL接种于96孔板过夜,加入含不同浓度待测化合物及相应溶剂对照的新鲜培养基,每孔加100μL(DMSO终浓度<0.1%),于37℃继续培养72h,每孔加入20μL新鲜配制的含5mg/mL MTT的PBS溶液,继续培养4h,弃上清后,每孔加入180μL DMSO溶解MTT甲簪沉淀,微型振荡器振荡混匀后,在检测波长570nm条件下测定光密度值(OD),以DMSO处理的肿瘤细胞为对照组,用以下公式计算待测化合物对肿瘤细胞生长的抑制率,并按中效方程计算IC 50
抑制率(%)=(对照组平均OD值-加药组平均OD值)/对照组平均OD值×100%
结果见表1。实验结果显示,所有实施例对人前列腺癌DU145都显示出强的抗增殖活性,其IC 50值均小于0.12μM;所有对比例对人前列腺癌DU145都显示出较弱的抗增殖活性,其IC 50值均大于1.0μM。
表1:对人前列腺癌细胞DU145的抗增殖活性
Figure PCTCN2020094796-appb-000081
Figure PCTCN2020094796-appb-000082
Figure PCTCN2020094796-appb-000083
Figure PCTCN2020094796-appb-000084
Figure PCTCN2020094796-appb-000085
实验例2:免疫印迹法检测p-STAT3的表达
收集对照组和不同浓度实施例1-7、12、13和15处理16h的DU145细胞,用预冷的PBS洗2次,加入适量RIPA裂解液(50mM Tris-HCI、1mM EDTA、1%Triton X-100、150mM NaCl、0.1%SDS、1mM NaF、Na 3VO 4、蛋白酶抑制剂,pH 7.4)冰上裂解1h后,4℃,12,000rpm离心20min,收集上清,进行蛋白定量,并煮沸变性。取等量蛋白进行10%SDS-PAGE电泳。一抗采用p-STAT3(Tyr705)、STAT3特异性抗体4℃孵育过夜。采用相应的HRP标记的二抗室温孵育2h,洗涤。加入ECL化学发光底物反应液,于凝胶成像系统内显影,并保存图像。以β-actin为内参。
结果见图1。
实验例3:裸鼠的人前列腺癌DU145异种移植模型的功效研究
无菌条件下收集人前列腺癌DU145肿瘤细胞,用灭菌生理盐水调整细胞密度至1×10 6个/mL,取0.2mL接种于裸鼠腋背部皮下,待肿瘤生长至直径1cm大小,无菌条件下取出,切成1mm×1mm大小的瘤块,均匀接种于裸鼠腋背部皮下。两周后待肿瘤生长至100~300mm 3后,将动物随机分组,开始给药(记为第0天)。待测化合物口服给药。每周两次称量体重并用游标卡尺测量肿瘤的长度和宽度。实验结束后将裸鼠脱臼处死,剥离肿瘤组织,称重并拍照。最后计算肿瘤抑制率,以肿瘤抑制率评价抗肿瘤作用强度,结果见表3、4和图2、3。
肿瘤体积按照以下公式计算:
肿瘤体积=(a×b 2)/2,a和b分别表示瘤体长度和宽度。
肿瘤生长抑制百分率按照以下公式计算:肿瘤生长抑制(%)=(1-T/C)×100,T为待测化合物组肿瘤体积,C为溶剂对照组肿瘤体积。
结果见表2和附图2。实验结果显示,实施例1在10mg/kg和20mg/kg的剂量下,在裸鼠的人前列腺癌DU145异种移植模型中体现出显著的抗肿瘤活性。
表2.实施例1在裸鼠的人前列腺癌DU145异种移植模型中的生长抑制作用
Figure PCTCN2020094796-appb-000086
***p<0.001
药理活性总结:
所有实施例对人前列腺癌DU145细胞都显示出强的体外抗增殖活性,其IC 50值均小于0.12μM。在免疫印迹法实验中,实施例1-7、12、13和15对人前列腺癌DU145的STAT3磷酸化显示出明显的抑制活性。体内药效学研究表明,实施例1在裸鼠的人前列腺癌DU145异种移植模型中显示出显著的生长抑制作用。

Claims (12)

  1. 一种式(I)所示的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐:
    Figure PCTCN2020094796-appb-100001
    其中
    R 1选自C 1-4烷基、C 3-6环烷基;
    R 2选自:苯基,其中所述苯基在对位被Ra取代;5-10元杂芳基,其中所述5-10元杂芳基被Ra取代;或与C 4-6环烯烃或C 4-6杂环烯烃稠合的苯基;
    Ra选自:氯、甲基、乙基、异丙基、环丙基、环丁基、甲氧基或乙氧基;
    R 3和R 4各自独立地选自氢、卤素、甲基、乙基或甲氧基。
  2. 根据权利要求1所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐,其特征在于,
    R 1选自甲基、乙基、正丙基、异丙基、环丙基或环丁基。
  3. 根据权利要求1或2所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐,其特征在于,所述R 2选自:
    Figure PCTCN2020094796-appb-100002
    Ra选自以下的基团:氯、甲基、乙基、异丙基、环丙基、环丁基、甲氧基或乙氧基。
  4. 根据权利要求3所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐,其特征在于,所述R 2选自:
    Figure PCTCN2020094796-appb-100003
    Ra选自以下的基团:甲基、乙基、环丙基、甲氧基或乙氧基。
  5. 根据权利要求1或2所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐,其特征在于,所述R 2选自:
    Figure PCTCN2020094796-appb-100004
  6. 根据权利要求1至5任一项所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐,其特征在于,R 3和R 4各自独立地选自氢、氯、氟、甲基、乙基,且R 3和R 4至少一个为氢。
  7. 根据权利要求6所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐,其特征在于,所述R 3为甲基,R 4为氢;或者所述R 3为氢,R 4为氯或氟。
  8. 根据权利要求1所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐,其中所述化合物选自:
    Figure PCTCN2020094796-appb-100005
  9. 一种药物组合物,其特征在于,所述的药物组合物包含至少一种根据权利要求1至8任一项所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐以及任选的药学上可接受的载体和/或赋形剂。
  10. 根据权利要求9所述的药物组合物,其特征在于,所述的药物组合物还包含除所述化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐之外的药物活性成分。
  11. 根据权利要求1至8任一项所述的化合物、其立体异构体、几何异构体、互变异构体或药学上可接受的盐,或根据权利要求9或10任一项所述的药物组合物在制备用于预防和/或治疗STAT3介导的疾病的药物中的应用。
  12. 根据权利要求11的应用,其特征在于,所述的STAT3介导的疾病包括肿瘤、自身免疫性疾病、肾脏疾病、心血管疾病、炎性疾病、代谢/内分泌功能障碍或神经疾病。
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