WO2020048471A1 - 7-取代吲唑类衍生物及其制备方法和其在医药上的用途 - Google Patents

7-取代吲唑类衍生物及其制备方法和其在医药上的用途 Download PDF

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WO2020048471A1
WO2020048471A1 PCT/CN2019/104281 CN2019104281W WO2020048471A1 WO 2020048471 A1 WO2020048471 A1 WO 2020048471A1 CN 2019104281 W CN2019104281 W CN 2019104281W WO 2020048471 A1 WO2020048471 A1 WO 2020048471A1
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alkyl
cycloalkyl
hydroxy
heteroaryl
trifluoromethyl
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French (fr)
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翟文强
卢勇平
朱亚波
杨翠霞
林海鸣
叶成
钱文建
施正政
胡泰山
陈磊
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浙江海正药业股份有限公司
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Priority to CN201980056077.1A priority Critical patent/CN112654604B/zh
Publication of WO2020048471A1 publication Critical patent/WO2020048471A1/zh

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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
    • A61K31/4161,2-Diazoles condensed with carbocyclic ring systems, e.g. indazole
    • 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
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/4427Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems
    • A61K31/4439Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. omeprazole
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P15/00Drugs for genital or sexual disorders; Contraceptives
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00Drugs for dermatological disorders
    • A61P17/06Antipsoriatics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P19/00Drugs for skeletal disorders
    • A61P19/02Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
    • 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
    • A61P37/02Immunomodulators
    • A61P37/06Immunosuppressants, e.g. drugs for graft rejection
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D231/00Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/54Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings condensed with carbocyclic rings or ring systems
    • C07D231/56Benzopyrazoles; Hydrogenated benzopyrazoles
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D401/00Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/12Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D401/00Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/14Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D405/00Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/14Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings

Definitions

  • the invention relates to a novel 7-substituted indazole derivative, a preparation method thereof, a pharmaceutical composition containing the derivative, and use thereof as a therapeutic agent, particularly as an IRAK4 inhibitor.
  • Interleukin-1 receptor-related kinase 4 is a member of the IRAK family of intracellular serine-threonine kinases. Other members of the kinase family include IRAK-1, IRAK-2, and IRAK-M. IRAK-M is only expressed in monocytes and macrophages, and the expression of IRAK-1, IRAK-2 and IRAK4 is ubiquitous. IRAK4 is mainly composed of N-terminally conserved death structural region (DD), hinge region, and C-terminal central kinase domain (KD). The DD region is a region where IRAK4 binds to the adaptor protein myeloid differentiation factor primary response gene 88 (MyD88).
  • MyD88 adaptor protein myeloid differentiation factor primary response gene 88
  • the KD region is composed of 12 sub-regions and has the characteristics of a typical serine-threonine kinase domain.
  • the main function of IRAK4 is to phosphorylate its substrate through the KD region, which in turn activates downstream signaling molecules.
  • IRAK4 is a key factor in the midstream of the inflammatory signal transduction pathway mediated by interleukin-1 receptor (IL-1R) / Toll-like receptor (TLR), and plays a key role in the immune system. When the interleukin-1 receptor (IL-1R) or Toll-like receptor (TLR) binds to the ligand, IRAK4 can mediate signaling and activate the expression of downstream inflammatory factors.
  • IL-1R interleukin-1 receptor
  • TLR Toll-like receptor
  • TLR can receive ligand signals from the body's interaction with microorganisms or stimulation from endogenous substances, as well as the first wave of inflammatory signals and innate immune response signals caused by these stimuli. TLR plays a very important role in many diseases, including infections and auto-inflammatory diseases, as well as many other diseases in humans. Like cancer necrosis factor- ⁇ (TNF- ⁇ ) and other major cytokines, interleukin-1 (IL-1) is a key factor in the inflammation-mediated pathway that is able to spread and amplify signals.
  • TNF- ⁇ cancer necrosis factor- ⁇
  • IL-1 interleukin-1
  • TLR TLR
  • IL-1R cytokine receptor-mediated signaling pathways
  • IRAK4 a key signaling factor in the midstream of TLR and IL-1R inflammation pathways, plays a significant role in systemic inflammatory responses and can be used as An effective potential target for the treatment of various inflammation-related diseases.
  • IRAK4 inhibitors Although a variety of IRAK4 inhibitors have been reported in the literature, there are currently no drugs targeted for this target, and only PF-06650833 from Pfizer Inc., BAY-1834845 from Bayer AG, and CA-4948 from Aurigene have entered the clinical stage. In the first-phase clinical results reported by Pfizer, PF-06650833 used a slow-release dosage form, which not only limited its application, but also increased the cost of drug development. No clinical results have been reported for Bayer AG's BAY-1834845 and Aurigene's CA-4948.
  • the present inventors have unexpectedly found that a compound represented by the following formula (I) has a good IRAK4 enzyme inhibitory activity by screening a large number of compounds.
  • the present invention provides a class of 7-substituted indazole derivatives represented by formula (I) or a stereoisomer, tautomer or a pharmaceutically acceptable salt thereof:
  • R 1 is selected from C 1 -C 6 alkyl, C 3 -C 8 cycloalkyl, heterocycloalkyl, aryl or heteroaryl; wherein said aryl or heteroaryl is optionally further substituted by one or more Selected from halogen, hydroxyl, -NR a R b , cyano, haloalkyl, -CONR A R B , C 1 -C 6 alkyl, C 3 -C 8 cycloalkyl, heterocycloalkyl or heteroaryl Substituted with
  • R A , R B , R E and R F are independently selected from a hydrogen atom, a C 1 -C 6 alkyl group or a C 3 -C 8 cycloalkyl group; wherein the alkyl or cycloalkyl group is optionally further substituted by one or Substituted with a plurality of substituents selected from halogen, hydroxy, cyano or haloalkyl;
  • R C and R D are independently selected from C 1 -C 6 alkyl or C 3 -C 8 cycloalkyl; wherein the alkyl or cycloalkyl is optionally further selected from one or more of halogen, hydroxy, cyano Substituted with a substituent of a radical or haloalkyl;
  • W is selected from a covalent bond, O, NH, or-(CH 2 ) n- , where n is an integer from 1-4;
  • G is selected from a covalent bond or - (CH 2) n -, where n is an integer of 1-4.
  • the compound of formula (I) or a stereoisomer, tautomer or a pharmaceutically acceptable salt thereof wherein R 1 is an aryl group or a heteroaryl group, wherein The aryl or heteroaryl is optionally further selected from one or more of halogen, hydroxy, -NR a R b , cyano, haloalkyl, -CONR A R B , C 1 -C 6 alkyl or hetero Aryl is substituted by a substituent; wherein R a , R b , R A and R B are as defined in formula (I).
  • the compound of formula (I) or a stereoisomer, a tautomer or a pharmaceutically acceptable salt thereof wherein R 2 is a C 1 -C 6 alkyl group, C 3 -C 8 cycloalkyl, halogen, alkoxy, cyano, nitro, -NR a R b , -CONR A R B , -SO 2 R C , hydroxyalkyl, heterocycloalkyl, heteroaryl Group , wherein R a , R b , R A , R B and R C are as defined in formula (I).
  • the compound of formula (I) or a stereoisomer, tautomer or a pharmaceutically acceptable salt thereof, wherein R 3 is C 1 -C 6 alkyl or Heterocycloalkyl, wherein the C 1 -C 6 alkyl or heterocycloalkyl is optionally further selected from one or more of halogen, hydroxy, -NR a R b , cyano, haloalkyl, oxo (O ), C 1 -C 6 alkyl, -COR D , -SO 2 R C , -CONR A R B or -SO 2 NR E R F are substituted by substituents, wherein R A , R B , R C , R D , R E and R F are as defined in formula (I).
  • the compound of formula (I) or a stereoisomer, tautomer or a pharmaceutically acceptable salt thereof is:
  • the present invention provides a pharmaceutical composition containing an effective dose of a compound of formula (I) or a stereoisomer, tautomer or a pharmaceutically acceptable salt thereof. , And optionally a pharmaceutically acceptable carrier, excipient, or a combination thereof.
  • the present invention provides a compound of formula (I) or a stereoisomer, a tautomer or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition thereof for preparing an IRAK4 kinase inhibitor.
  • a compound of formula (I) or a stereoisomer, a tautomer or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition thereof for preparing an IRAK4 kinase inhibitor Use in active medicine.
  • the present invention provides a compound of formula (I) or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof, or a pharmaceutical composition thereof for use in the prevention or treatment.
  • a medicine for an autoimmune disease, inflammatory disease or cancer wherein the autoimmune disease, inflammatory disease or cancer is preferably from lymphoma, endometriosis, psoriasis, lupus erythematosus, multiple Sclerosis or rheumatoid arthritis; wherein the lymphoma is preferably a primary central nervous system lymphoma or diffuse large B-cell lymphoma with a MYD88 L265P mutation.
  • Alkyl when taken as a group or part of a group refers to a straight or branched aliphatic hydrocarbon group. C 1 -C 20 alkyl is preferred, and C 1 -C 6 alkyl is more preferred. Examples of alkyl groups include, but are not limited to, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, sec-butyl, n-pentyl, 1,1-di Methylpropyl, 1,2-dimethylpropyl, 2,2-dimethylpropyl, 1-ethylpropyl, 2-methylbutyl, 3-methylbutyl, n-hexyl, 1-ethyl-2-methylpropyl, 1,1,2-trimethylpropyl, 1,1-dimethylbutyl, 1,2-dimethylbutyl, 2,2-dimethyl Butylbutyl, 1,3-dimethylbutyl,
  • Cycloalkyl refers to saturated or partially saturated carbocyclic rings that are monocyclic, fused, bridged, and spiro. It is preferably a C 3 -C 12 cycloalkyl group, more preferably a C 3 -C 8 cycloalkyl group, and most preferably a C 3 -C 6 cycloalkyl group.
  • Examples of monocyclic cycloalkyl include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl, cyclohexenyl, cyclohexadienyl, cycloheptyl, cycloheptyl Alkenyl, cyclooctyl and the like are preferably cyclopropyl or cyclohexyl.
  • Alkoxy refers to a (alkyl-O-) group. Among them, alkyl refers to the relevant provisions herein. C 1 -C 6 alkoxy is a preferred choice. Examples thereof include, but are not limited to, methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, t-butoxy, cyclopropoxy, and the like.
  • Halogen means fluorine, chlorine, bromine and iodine.
  • Haloalkyl means a halogen-containing alkyl group, where halogen and alkyl are specified herein.
  • C 1 -C 6 haloalkyl is a preferred choice. Examples thereof include, but are not limited to, monofluoromethyl, difluoromethyl, trifluoromethyl, pentafluoroethyl, and the like.
  • Aryl refers to a monocyclic or bicyclic aromatic hydrocarbon group having 6 to 12 carbon atoms, and examples thereof include, but are not limited to, phenyl, naphthyl, and the like.
  • Heteroaryl refers to a 5-membered monocyclic aromatic hydrocarbon group, a 6-membered monocyclic aromatic hydrocarbon group, a 9-bicyclic aromatic hydrocarbon group, or a 10-membered bicyclic aromatic hydrocarbon group containing at least one hetero atom (O, S, or N), and examples thereof include but Not limited to thienyl, furyl, pyrrolyl, thiazolyl, oxazolyl, imidazolyl, pyrazolyl, pyrimidinyl, pyridyl, quinolyl, isoquinolyl, indolyl, benzothienyl, benzene Oxazolyl, benzothiazolyl, benzimidazolyl, and the like.
  • Heterocycloalkyl refers to a structure in which at least one ring carbon atom in a cycloalkyl group is replaced with a nitrogen, oxygen, or sulfur atom.
  • Cycloalkyl is defined as described above, with 4- to 8-membered rings being the preferred choice. Examples thereof include, but are not limited to, oxetanyl, azetidinyl, tetrahydropyrrolyl, piperidinyl, morpholinyl, nitrogen methylpiperidinyl, tetrahydropyranyl, dioxane Substituted morpholinyl, thiomorpholinyl and the like.
  • Hydroxyalkyl refers to a hydroxy-substituted alkyl group. Among them, alkyl refers to the relevant provisions herein. Examples thereof include, but are not limited to, 3-hydroxy-3-methylbutyl, 2-hydroxyprop-2-yl, hydroxyethyl, hydroxybutyl, hydroxycyclopentyl, hydroxycyclohexyl, and the like.
  • Fused ring refers to a cyclic structure consisting of the same or different two of a cycloalkyl, heterocycloalkyl, aryl, or heteroaryl group that share two atoms.
  • cycloalkyl, heterocycloalkyl, aryl, and heteroaryl refer to the relevant provisions herein. Examples thereof include, but are not limited to, tetrahydroquinolinyl, tetrahydroisoquinolinyl, benzomorpholinyl, and the like.
  • spiro ring refers to a cyclic structure composed of the same or different two of a cycloalkyl group or a heterocycloalkyl group that share one atom.
  • cycloalkyl and heterocycloalkyl refer to the relevant provisions herein. Examples thereof include, but are not limited to, 5-azaspiro [2.5] octyl, 6-azaspiro [2.5] octyl, 3-oxa-9azaspiro [5.5] undecyl, and the like.
  • the examples show the preparation of the representative compounds represented by formula (I) and the related structural identification data. It must be noted that the following examples are only used to illustrate the present invention and not to limit the present invention.
  • the raw materials used for synthesizing the compounds of the present invention are all derived from synthetic routes of commercial or known literatures without special instructions.
  • the present invention uses the following abbreviations:
  • HATU O- (7-azabenzotriazol-1-yl) -N, N, N ', N'-tetramethylurea hexafluorophosphate
  • the second step is to synthesize 4- (5-amino-7-bromo-2H-indazol-2-yl) -2-methylbut-2-ol
  • the second step is to synthesize 5-amino 2- (3-hydroxy-3-methylbutyl) -2H-indazole-7-carboxylic acid methyl ester.
  • 6-trifluoromethylpyridine-2-carboxylic acid (467mg, 2.4mmol), dissolve with DCM (10mL), stir, add oxalyl chloride (420mg, 2eq), dropwise add 1 drop of DMF to catalyze, and react at room temperature until starting material 6 -The reaction of trifluoromethylpyridine-2-carboxylic acid is complete. Concentrate, add DCM to dissolve and spin-dry again. Repeat 6 times. The obtained 6-trifluoromethylpyridine-2-formyl chloride is reserved for future use.
  • 6- (trifluoromethyl) pyridine-2-carboxylic acid 100 mg, 0.52 mmol was added to the reaction tube, DCM (15 mL) was added to dissolve, and oxalyl chloride (263 mg, 2.10 mmol) was added. A drop of DMF was added to catalyze, and the reaction was performed at room temperature for 30 min. Remove DCM and oxalyl chloride, add DCM to dissolve and spin-dry again. Repeat three times and set aside.
  • Step 4 Synthesis of N- (2- (2- (dimethylamino) ethyl) -7-methoxy-2H-indazol-5-yl) -6- (trifluoromethyl) pyridine-2- Formamide
  • the raw material 10a (10 g, 51.5 mmol) was weighed and dissolved in 150 mL of dichloromethane, and triethylamine (10.5 g, 102.9 mmol) and DMAP (0.3 g, 2.6 mmol) were added.
  • 4-Toluenesulfonyl chloride (14.7 g, 77.3 mmol) dissolved in dichloromethane was added dropwise with stirring at room temperature. The reaction was carried out at room temperature, and the reaction of the starting materials was monitored by TLC.
  • the third step is to synthesize 4- (5-amino-7-bromo-2H-indazol-2-yl) piperidine-1-carboxylic acid tert-butyl ester.
  • raw material 10c 400mg, 0.94mmol
  • iron powder (265mg, 5eq) and ammonium chloride (25mg, 0.5eq)
  • ethanol / water 20mL, volume ratio 5/1
  • react at 90 ° C until raw material 10c reacts Complete, filter through diatomaceous earth, spin-dry the filtrate, dissolve it in ethyl acetate (20 mL), wash with saturated NaHCO 3 solution (10 mL ⁇ 2), dry with anhydrous Na 2 SO 4 , filter and spin off the solvent to obtain 10 d. .
  • Cisbio's KinEASE-STK S1 serine / threonine kinase kits are used to determine the degree of phosphorylation of biotinylated peptide substrates, and are measured using homogeneous time-resolved fluorescence (HTRF).
  • HTRF homogeneous time-resolved fluorescence
  • the experimental procedure is briefly described as follows: The compounds in the present invention are first dissolved in DMSO to a final concentration of 10 mM. Then, the buffer solution provided in the kit is used for equal gradient dilution, so that the final concentration of the test compound in the reaction system ranges from 16000 nM to 0.008 nM, and the final concentration of DMSO is less than 2%.
  • the tested adenosine triphosphate (ATP) concentration was a pre-determined corresponding ATP Km value (300 ⁇ M).
  • Compounds, kinases, biotinylated peptide substrates and ATP were incubated at 37 ° C for 1 h for the kinase reaction, and then anti-phosphorylated silk / threonine antibodies coupled with actinide compounds and conjugates were added to the reaction system There was a modified XL665 streptavidin to stop the reaction, and it was incubated at room temperature for 1 h.
  • the compounds of the present invention have a good inhibitory effect on IRAK4 enzyme.
  • the IRAK4 enzyme inhibitory activity IC 50 of Compound 4 was 2.4 nM, which showed a more excellent IRAK4 enzyme inhibitory activity than the control compound BAY-1834845 (WO2016083433 Example 11), while compounds 5 and 10 had a BAY- 1834845 Equivalent IRAK4 enzyme inhibitory activity.
  • the following method is used to determine the solubility of a preferred compound of the present invention in a phosphate buffered saline solution (PBS, pH 7.4).
  • PBS phosphate buffered saline solution
  • the solubility of the preferred compounds 5 and 10 of the present invention in phosphate buffered saline is 692 uM and 74.7 uM, respectively, compared with the control compound BAY-1834845 (WO2016083433 Example 11) Compared with the solubility of uM, it has more excellent solubility, which has greater convenience and advantages for the subsequent development of oral dosage forms.

Abstract

涉及具有式(I)所示的7-取代吲唑类衍生物或其药学上可接受的盐、及其制备方法,以及它们作为治疗剂,特别是作为IRAK4激酶抑制剂的用途;其中式(I)中的R 1,R 2,R 3,G和W的定义与说明书中的定义相同。

Description

7-取代吲唑类衍生物及其制备方法和其在医药上的用途
交叉引用
本申请要求发明名称为“7-取代吲唑类衍生物及其制备方法和其在医药上的用途”于2018年9月6日提交到中国专利局的中国专利申请201811037410.8的优先权,其内容通过引用以整体并入本文。
技术领域
本发明涉及一种新的7-取代吲唑类衍生物,其制备方法以及含有该衍生物的药物组合物以及其作为治疗剂特别是作为IRAK4抑制剂的用途。
技术背景
白细胞介素-1受体相关激酶4(IRAK-4)是细胞内丝氨酸-苏氨酸激酶IRAK家族的成员之一。激酶家族的其他成员还包括IRAK-1、IRAK-2和IRAK-M。IRAK-M仅在单核细胞和巨噬细胞中表达,IRAK-1、IRAK-2和IRAK4的表达普遍存在。IRAK4主要由N端保守的死亡结构区域(DD)、铰链区、C端的中央激酶结构域(KD)组成。DD区是IRAK4与接头蛋白髓样分化因子初次应答基因88(MyD88)相结合的区域。KD区由12个亚区域构成,具有典型的丝氨酸-苏氨酸激酶结构域特征。IRAK4的主要功能是通过KD区域将其底物磷酸化,进而激活下游信号分子。IRAK4是白细胞介素-1受体(IL-1R)/Toll样受体(TLR)介导的炎症信号转导通路中游的关键因子,在免疫***中起关键作用。当白细胞介素-1受体(IL-1R)或者Toll样受体(TLR)与配体结合后,IRAK4能够介导信号传导,激活下游炎症因子的表达。TLR可以接受来自机体与微生物作用或者内源性物质刺激产生的配体信号,以及这些刺激引发的第一波炎症信号和先天免疫反应信号。TLR在许多疾病中,包括感染和自身炎症性疾病以及人类的许多其他疾病,起着非常重要的作用。像癌症坏死因子-α(TNF-α)和其他主要的细胞因子一样,白细胞介素-1(IL-1)是炎症介导通路中的关键因子,能够传播和放大信号。由于TLR、IL-1R和其他细胞因子受体介导的信号通路有着相互交 联的作用,所以TLR和IL-1R炎症通路中游的关键信号因子—IRAK4,在全身炎症反应中作用重大,能够作为治疗各种炎症相关性疾病的一个有效潜在靶点。
尽管文献报道了多种IRAK4抑制剂,然而目前还没有针对该靶点的药物上市,而进入临床阶段的只有Pfizer Inc的PF-06650833、Bayer AG的BAY-1834845和Aurigene的CA-4948。在Pfizer报道的一期临床结果中PF-06650833采用了缓释剂型,这不仅限制了其应用,也增加了药物开发成本。Bayer AG的BAY-1834845和Aurigene的CA-4948尚未有临床结果报道。
已经公开的一系列IRAK4抑制剂的专利,如WO2015104662、WO2016083433、WO201709798等详细描述了6-取代的吲唑类衍生物,然而,现有技术中公开的化合物以及试验药物在有效性、安全性或适用性等方面仍不能令人满意,仍有必要继续研究和开发新的白细胞介素-1受体相关激酶4(IRAK4)抑制剂,以满足人们日益增长的医疗和健康需求。
发明内容
本发明人通过大量的化合物筛选意外地发现,下式(I)所示的化合物具有良好的IRAK4酶抑制活性。
因此,在第一个方面,本发明提供了一类式(I)所示的7-取代吲唑类衍生物或其立体异构体、互变异构体或其药学上可接受的盐:
Figure PCTCN2019104281-appb-000001
其中:
R 1选自C 1-C 6烷基、C 3-C 8环烷基、杂环烷基、芳基或杂芳基;其中所述的芳基或杂芳基任选进一步被一个或多个选自卤素、羟基、-NR aR b、氰基、卤代烷基、-CONR AR B、C 1-C 6烷基、C 3-C 8环烷基、杂环烷基或杂芳基的取代基所取代;
R 2选自C 1-C 6烷基、C 3-C 8环烷基、卤素、烷氧基、氰基、羟基、硝基、-NR aR b、-CONR AR B、-SO 2R C、卤代烷基、羟基烷基、杂环烷基、芳基或杂芳基;其中所 述的C 1-C 6烷基、C 3-C 8环烷基、杂环烷基、芳基或杂芳基任选进一步被一个或多个选自卤素、羟基、-NR aR b、氰基、卤代烷基、氧代基(O=)、C 1-C 6烷基、-COR D、-SO 2R C、-CONR AR B或-SO 2NR ER F的取代基所取代;
R 3选自氰基、烷氧基、卤代烷基、-NR aR b、-CONR AR B、-SO 2NR ER F、C 1-C 6烷基、C 3-C 8环烷基、杂环烷基或杂芳基;其中所述的C 1-C 6烷基、C 3-C 8环烷基、杂环烷基或杂芳基任选进一步被一个或多个选自卤素、羟基、-NR aR b、氰基、卤代烷基、氧代基(O=)、C 1-C 6烷基、-COR D、-SO 2R C、-CONR AR B或-SO 2NR ER F的取代基所取代;
R a和R b独立地选自氢原子、-COR D、-SO 2R C、C 1-C 6烷基、C 3-C 8环烷基、芳基或杂芳基;其中所述的C 1-C 6烷基、C 3-C 8环烷基、芳基或杂芳基任选进一步被一个或多个选自卤素、羟基、烷氧基、-NR aR b、氰基、卤代烷基、-CONR AR B或-SO 2NR ER F的取代基所取代;或者R a和R b与其所连接的氮原子形成4到8元具有一个或多个选自氮、氧、硫原子的杂环、稠环或螺环,其中,所述杂环、稠环或螺环任选进一步被一个或多个氧代基(O=)取代;
R A、R B、R E和R F独立地选自氢原子、C 1-C 6烷基或C 3-C 8环烷基;其中所述烷基或环烷基任选进一步被一个或多个选自卤素、羟基、氰基或卤代烷基的取代基所取代;
R C和R D独立地选自C 1-C 6烷基或C 3-C 8环烷基;其中所述烷基或环烷基任选进一步被一个或多个选自卤素、羟基、氰基或卤代烷基的取代基所取代;
W选自共价键、O、NH或-(CH 2) n-,其中n为1-4的整数;
G选自共价键或-(CH 2) n-,其中n为1-4的整数。
在本发明的一些优选方案中,式(I)所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,其中R 1为芳基或杂芳基,其中所述的芳基或杂芳基任选进一步被一个或多个选自卤素、羟基、-NR aR b、氰基、卤代烷基、-CONR AR B、C 1-C 6烷基或杂芳基的取代基所取代;其中,R a、R b、R A和R B的定义如式(I)中所述。
在本发明的一些优选方案中,式(I)所述化合物或其立体异构体、互变异构体或其药学上可接受的盐,其中,R 1选自以下基团:
Figure PCTCN2019104281-appb-000002
*代表基团连接至式(I)化合物其余部分的位置。
在本发明的一些优选方案中,式(I)所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,其中R 2为C 1-C 6烷基、C 3-C 8环烷基、卤素、烷氧基、氰基、硝基、-NR aR b、-CONR AR B、-SO 2R C、羟基烷基、杂环烷基、杂芳基,其中,R a、R b、R A、R B和R C的定义如式(I)中所述。
在本发明的一些优选方案中,式(I)所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,其中R 3为C 1-C 6烷基或杂环烷基,其中所述的C 1-C 6烷基或杂环烷基任选进一步被一个或多个选自卤素、羟基、-NR aR b、氰基、卤代烷基、氧代基(O=)、C 1-C 6烷基、-COR D、-SO 2R C、-CONR AR B或-SO 2NR ER F的取代基所取代,其中,R A、R B、R C、R D、R E和R F的定义如式(I)中所述。
在本发明的一些优选方案中,式(I)所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,其为:
Figure PCTCN2019104281-appb-000003
N-(7-溴-2-(3-羟基-3-甲基丁基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;
Figure PCTCN2019104281-appb-000004
2-(3-羟基-3-甲基丁基)-5-(6-(三氟甲基)吡啶-2-甲酰胺)-2H-吲唑-7-甲酰胺;
Figure PCTCN2019104281-appb-000005
2-(3-羟基-3-甲基丁基)-N,N-二甲基-5-(6-(三氟甲基)吡啶-2-甲酰胺)-2H-吲唑-7-甲酰胺;
Figure PCTCN2019104281-appb-000006
N-(2-(3-羟基-3-甲基丁基)-7-(1H-吡唑-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;
Figure PCTCN2019104281-appb-000007
N-(2-(3-羟基-3-甲基丁基)-7-甲氧基-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;
Figure PCTCN2019104281-appb-000008
N-(7-环丙基-2-(3-羟基-3-甲基丁基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰 胺;
Figure PCTCN2019104281-appb-000009
N-(2-(3-羟基-3-甲基丁基)-7-(2-羟基丙-2-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;
Figure PCTCN2019104281-appb-000010
N-(2-(2-(二甲基氨基)乙基)-7-甲氧基-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;
Figure PCTCN2019104281-appb-000011
N-(7-甲氧基-2-(四氢-2H-吡喃-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;或
Figure PCTCN2019104281-appb-000012
N-(7-甲氧基-2-(1-甲基哌啶-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺。
进一步,本发明提供了一种药物组合物,所述的药物组合物含有有效剂量的式(I)所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,以及任 选的可药用的载体、赋形剂或它们的组合。
另一方面,本发明提供了式(I)所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,或其药物组合物在制备用于抑制IRAK4激酶的活性的药物中的用途。
在又一方面,本发明提供了式(I)所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,或其药物组合物在制备用于预防或治疗自身免疫性疾病、炎性疾病或癌症的药物中的用途,其中所述的自身免疫性疾病、炎性疾病或癌症优选自淋巴瘤、子宫内膜异位症、银屑病、红斑狼疮、多发硬化症或类风湿性关节炎;其中所述的淋巴瘤优选为带有MYD88 L265P突变的原发性中枢神经***淋巴瘤或弥漫性大B细胞淋巴瘤。
本发明在说明书和权利要求书中所使用的部分术语定义如下:
“烷基”当作一基团或一基团的一部分时是指直链或者带有支链的脂肪烃基团。优选为C 1-C 20烷基,更优选为C 1-C 6烷基。烷基基团的实施例包括但不限于甲基、乙基、正丙基、异丙基、正丁基、异丁基、叔丁基、仲丁基、正戊基、1,1-二甲基丙基、1,2-二甲基丙基、2,2-二甲基丙基、1-乙基丙基、2-甲基丁基、3-甲基丁基、正已基、1-乙基-2-甲基丙基、1,1,2-三甲基丙基、1,1-二甲基丁基、1,2-二甲基丁基、2,2-二甲基丁基、1,3-二甲基丁基、2-乙基丁基、2-甲基戊基、3-甲基戊基、4-甲基戊基、2,3-二甲基丁基等。烷基可以是取代或未取代的。
“环烷基”是指饱和或部分饱和的单环、稠环、桥环和螺环的碳环。优选为C 3-C 12环烷基,更优选为C 3-C 8环烷基,最优选为C 3-C 6环烷基。单环环烷基的实施例包括但不限于环丙基、环丁基、环戊基、环戊烯基、环己基、环己烯基、环己二烯基、环庚基、环庚三烯基、环辛基等,优选为环丙基、环己基。
“烷氧基”是指(烷基-O-)的基团。其中,烷基见本文有关规定。C 1-C 6的烷氧基为优选选择。其实施例包括但不限于甲氧基、乙氧基、正丙氧基、异丙氧基、正丁氧基、异丁氧基、叔丁氧基、环丙氧基等。
“卤素”是指氟、氯、溴和碘。
“氧代基”是指经由双键连接到碳原子上的氧原子(O=)的基团。
“卤代烷基”是指含有卤素取代的烷基,其中卤素和烷基见本文有关规定。C 1-C 6的卤代烷基为优选选择。其实施例包括但不限于单氟甲基、二氟甲基、三 氟甲基、五氟乙基等。
“芳基”是指具有6至12个碳原子的单环或双环芳族烃基,其实施例包括但不限于苯基、萘基等。
“杂芳基”是指至少含一个杂原子(O、S或N)的5元单环芳烃基、6元单环芳烃基、9双环芳烃基或10元双环芳烃基,其实施例包括但不限于噻吩基、呋喃基、吡咯基、噻唑基、噁唑基、咪唑基、吡唑基、嘧啶基、吡啶基、喹啉基、异喹啉基、吲哚基、苯并噻吩基、苯并噁唑基、苯并噻唑基、苯并咪唑基等。
“杂环烷基”指是指环烷基中至少一个环碳原子被氮、氧或硫原子替换的结构。环烷基的定义如上文所述,其中4到8元环为优选选择。其实施例包括但不限于氧杂环丁烷基、氮杂环丁烷基、四氢吡咯基、哌啶基、***啉基、氮甲基哌啶基、四氢吡喃基、二氧硫代吗啉基、硫代吗啉基等。
“羟基烷基”是指羟基取代的烷基基团。其中,烷基见本文有关规定。其实施例包括但不限于3-羟基-3-甲基丁基、2-羟基丙-2-基、羟基乙基、羟基丁基、羟基环戊基、羟基环己基等形式。
“稠环”是指共用两个原子的由环烷基、杂环烷基、芳基或杂芳基中相同或不同的两个构成的环状结构。其中,环烷基、杂环烷基、芳基、杂芳基见本文有关规定。其实施例包括但不限于四氢喹啉基、四氢异喹啉基、苯并***啉基等。
“螺环”是指共用一个原子的由环烷基或杂环烷基中的相同或不同的两个构成的环状结构。其中,环烷基、杂环烷基见本文有关规定。其实施例包括但不限于5-氮杂螺[2.5]辛烷基,6-氮杂螺[2.5]辛烷基,3-氧杂-9氮杂螺[5.5]十一烷基等。
具体实施方式
实施例给出了式(I)所表示的代表性化合物的制备及相关结构鉴定数据。必须说明,以下实施例仅用于说明本发明而不是对本发明的限制。 1H NMR化学位移用ppm表示,其中s=单峰,d=双重峰,t=三重峰,q=四重峰,m=多重峰,br=变宽的。若提供耦合常数时,其单位为Hz。用作合成本发明的化合物的原料无特殊说明均来源于市售或已知文献的合成路线。其市售厂家来自于上海毕得医药科技有限公司、上海韶远试剂有限公司、上海凌凯医药科技有限公司、南京药石科技股份有限公司、上海浩鸿生物医药科技有限公司;中间体1b参考专利WO2017186700合成得到。
本发明使用以下缩写:
HATU:O-(7-氮杂苯并***-1-基)-N,N,N',N'-四甲基脲六氟磷酸盐
DIEA:N,N-二异丙基乙胺
THF:四氢呋喃
Hex:正己烷
DMF:N,N-二甲基甲酰胺
DCM:二氯甲烷
实施例1
N-(7-溴-2-(3-羟基-3-甲基丁基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000013
第一步 合成4-(7-溴-5-硝基-2H-吲唑-2-基)-2-甲基丁-2-醇
Figure PCTCN2019104281-appb-000014
称取1a(2.6g,10mmol),Cs 2CO 3(9.78g,3eq),加入DMF(20mL),室温搅拌1h后加入1b(9.85g,3eq),继续反应过夜,TLC检测原料1a消失,加入饱和食盐水(50mL)洗涤,乙酸乙酯萃取,无水硫酸钠干燥,过滤,浓缩,硅胶柱层析,乙酸乙酯/正己烷洗脱得到1c(2.8g,84%)。
第二步 合成4-(5-氨基-7-溴-2H-吲唑-2-基)-2-甲基丁-2-醇
Figure PCTCN2019104281-appb-000015
称取1c(1.6g,5mmol)、铁粉(2.8g,10eq)和氯化铵(0.82g,3eq),加入乙醇/水(100mL,体积比4/1),90℃反应直到原料1c反应完全,硅藻土过滤,滤液浓缩,乙酸乙酯溶解(100mL),饱和NaHCO 3溶液(30mL×2)洗涤,无水硫酸钠干燥,过滤,浓缩得到的1d直接投入下一步反应。
第三步 合成N-(7-溴-2-(3-羟基-3-甲基丁基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000016
称取6-三氟甲基吡啶-2-甲酸(1.15g,6mmol),用DCM(30mL)溶解,搅拌,加入草酰氯(1.52g,1.2eq),滴入3滴DMF催化,室温反应直到原料6-三氟甲基吡啶-2-甲酸反应完全,旋除溶剂,再加入DCM溶解再次旋干,反复三次,得到的6-三氟甲基吡啶-2-甲酰氯备用。
将1d(5mmol)溶于40mL二氯甲烷,加入DIEA(1.94g,3eq),室温下搅拌,将上述制备的6-三氟甲基吡啶-2-甲酰氯溶于10mL DCM滴加到反应中,TLC检测至1d反应完全,加入饱和NaHCO 3溶液(30mL×2)洗涤,无水硫酸钠干燥,硅胶柱层析,二氯甲烷/甲醇洗脱得到1(1.7g,两步反应72%产率)。
LCMS m/z(ESI):471.1[M+H] +、473.1[M+H] +
1H NMR(400MHz,CDCl 3)δ9.79(s,1H),8.49(d,J=7.8Hz,1H),8.32(d,J=1.6Hz,1H),8.12(t,J=7.8Hz,1H),8.03(s,1H),7.87(d,J=7.8Hz,1H),7.67(d,J=1.6Hz,1H),4.64(t,J=7.6Hz,2H),2.23(t,J=7.6Hz,2H),1.33(s,6H).
实施例2
2-(3-羟基-3-甲基丁基)-5-(6-(三氟甲基)吡啶-2-甲酰胺)-2H-吲唑-7-甲酰胺
Figure PCTCN2019104281-appb-000017
第一步 合成2-(3-羟基-3-甲基丁基)-5-硝基-2H-吲唑-7-羧酸甲酯
Figure PCTCN2019104281-appb-000018
称取2a(500mg,2.26mmol),碳酸铯(1.47g,2eq),加入DMF(10mL), 室温搅拌一小时后加入1b(700mg,1.2eq),继续反应,TLC检测直到2a消失。加入饱和食盐水(20mL)洗涤,乙酸乙酯萃取,无水硫酸钠干燥,过滤,浓缩,硅胶柱层析,乙酸乙酯/正己烷洗脱得到2b(500mg,72%)。
第二步 合成5-氨基2-(3-羟基-3-甲基丁基)-2H-吲唑-7-羧酸甲酯
Figure PCTCN2019104281-appb-000019
称取2b(500mg,1.63mmol)、铁粉(454mg,5eq)和氯化铵(44mg,0.5eq),加入乙醇/水(20mL,体积比5/1),90℃反应直到2b反应完全,硅藻土过滤,滤液浓缩,用乙酸乙酯溶解(20mL),饱和NaHCO 3溶液(10mL×2)洗涤,无水硫酸钠干燥,过滤,浓缩得到的2c直接投入下一步反应。
第三步 合成2-(3-羟基-3-甲基丁基)-5-(6-(三氟甲基)吡啶-2-甲酰胺)-2H-吲唑-7-羧酸甲酯
Figure PCTCN2019104281-appb-000020
称取6-三氟甲基吡啶-2-甲酸(467mg,2.4mmol),用DCM(10mL)溶解,搅拌,加入草酰氯(420mg,2eq),滴入1滴DMF催化,室温反应直到原料6-三氟甲基吡啶-2-甲酸反应完全,浓缩,再加入DCM溶解再次旋干,反复三次,得到的6-三氟甲基吡啶-2-甲酰氯备用。
将2c(1.6mmol)溶于20mL二氯甲烷,加入DIEA(630mg,3eq),室温下搅拌,将上述制备的6-三氟甲基吡啶-2-甲酰氯溶于DCM(10mL)滴加到反应中,TLC检测至2c反应完全,加入饱和NaHCO 3溶液(10mL×2)洗涤,无水硫酸钠干燥,过滤,浓缩,硅胶柱层析,二氯甲烷/甲醇洗脱得到2d(600mg,两步反应82%产率)。
第四步 合成2-(3-羟基-3-甲基丁基)-5-(6-(三氟甲基)吡啶-2-甲酰胺)-2H-吲唑-7-羧酸
Figure PCTCN2019104281-appb-000021
称取2d(200mg,0.44mmol)和LiOH·H 2O(56mg,3eq),加入四氢呋喃/甲醇/水(5mL,体积比=4/4/1),室温下搅拌过夜,TLC检测至2d反应完全,浓缩,加水调节pH至弱酸性,DCM(10mL×3)萃取,无水硫酸钠干燥,过滤,浓缩得到的2e(180mg,93%)直接投入下一步反应。
第五步 合成2-(3-羟基-3-甲基丁基)-5-(6-(三氟甲基)吡啶-2-甲酰胺)-2H-吲唑-7-甲酰胺
Figure PCTCN2019104281-appb-000022
称取2e(50mg,0.11mmol),HATU(65mg,1.5eq),NH 4Cl(25mg,4eq),DIEA(60mg,4eq),加入DMF(3mL),室温下搅拌过夜,TLC检测至2e反应完全,加入饱和食盐水(10mL)洗涤,乙酸乙酯(10mL×3)萃取,无水硫酸钠干燥,过滤,浓缩,硅胶柱层析,二氯甲烷/甲醇洗脱得到2(40mg,80%)。
LCMS m/z(ESI):436.1[M+H] +
1H NMR(400MHz,DMSO-d 6)δ10.65(s,1H),8.60-8.53(m,2H),8.43-8.33(m,3H),8.17(d,J=7.5Hz,1H),7.86(d,J=2.5Hz,1H),4.61-4.53(m,3H),2.13-2.06(m,2H),1.17(s,6H).
实施例3
2-(3-羟基-3-甲基丁基)-N,N-二甲基-5-(6-(三氟甲基)吡啶-2-甲酰胺)-2H-吲唑-7-甲酰胺
Figure PCTCN2019104281-appb-000023
Figure PCTCN2019104281-appb-000024
称取2e(50mg,0.11mmol),HATU(65mg,1.5eq),二甲胺盐酸盐(19mg,2eq),DIEA(60mg,4eq),加入DMF(3mL),室温下搅拌过夜,TLC检测至2e反应完全,加入饱和食盐水(10mL)洗涤,乙酸乙酯(10mL×3)萃取,无水硫酸钠干燥,过滤,浓缩,硅胶柱层析,二氯甲烷/甲醇洗脱得到3(45mg,85%)。
LCMS m/z(ESI):464.2[M+H] +
1H NMR(400MHz,CDCl 3)δ9.85(s,1H),8.46(d,J=7.8Hz,1H),8.37(s,1H),8.12(t,J=7.8Hz,1H),7.99(s,1H),7.86(d,J=7.8Hz,1H),7.47(s,1H),4.05-4.47(m,2H),3.18(s,3H),2.96(s,3H),2.18-2.09(m,2H),1.25(s,6H).
实施例4
N-(2-(3-羟基-3-甲基丁基)-7-(1H-吡唑-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000025
反应瓶内加入1(50mg,0.1mmol),4a(60mg,0.3mmol),特戊酸钾(70mg,0.5mmol),四三苯基膦钯(60mg,0.05mmol),二氧六环/水(10mL,体积比4:1)作溶剂,100℃反应,TLC检测至1反应完全,降温至室温,加入饱和食盐水20mL,乙酸乙酯(30mL×2)萃取两次,有机相用无水硫酸钠干燥,过 滤,浓缩,硅胶柱层析,用甲醇/二氯甲烷洗脱得到4(21mg,45%)。
LCMS m/z(ESI):459.2[M+H] +
1H NMR(400MHz,CD 3OD)δ8.50-8.35(m,2H),8.25(t,J=8Hz,1H),8.20(s,1H),8.14(s,1H),8.00(d,J=8Hz,1H),7.74(s,1H),4.59(t,J=8Hz,2H),2.21(t,J=8Hz,2H),1.27(s,6H).
实施例5
N-(2-(3-羟基-3-甲基丁基)-7-甲氧基-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000026
反应管中加入1(50mg,0.1mmol),CuI(42mg,2eq),MeONa溶液(5M甲醇溶液,10eq),无水二氧六环(5mL),加热至80℃反应。TLC监测到1反应完全,加入乙酸乙酯(50mL)稀释,用饱和NaCl水溶液洗涤(10mL×2),无水硫酸钠干燥,过滤,浓缩,硅胶柱纯化(MeOH:DCM=1:30)得到5(25mg,60%)。
LCMS m/z(ESI):423.2[M+H] +
1H NMR(400MHz,CDCl 3)δ9.76(s,1H),8.51(d,J=8Hz,1H),8.13(t,J=8Hz,2H),7.90-7.85(m,2H),7.81(d,J=1.2Hz,1H),6.85(s,1H),4.58(t,J=8Hz,2H),4.07(s,3H),2.22(t,J=8Hz,2H),1.30(s,6H).
实施例6
N-(7-环丙基-2-(3-羟基-3-甲基丁基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000027
反应管内加入1(50mg,0.1mmol),6a(54mg,0.3mmol),碳酸钾(70mg,0.5mmol),四三苯基膦钯(60mg,0.05mmol),二氧六环/水(10mL,体积比3:1)作溶剂,100℃反应,TLC检测至1反应完全,降温至室温,加入饱和食盐水20mL,乙酸乙酯(30mL×2)萃取两次,有机相用无水硫酸钠干燥,过滤,浓缩,制备硅胶板纯化,二氯甲烷/甲醇洗脱得到化合物6(20mg,44%)。
1H NMR(400MHz,CDCl 3)δ9.77(s,1H),8.51(d,J=7.8Hz,1H),8.26(s,1H),8.13(t,J=7.8Hz,1H),7.94(s,1H),7.87(d,J=7.8Hz,2H),4.59(t,J=7.2Hz,2H),3.35(t,J=7.4Hz,2H),3.02(t,J=7.4Hz,2H),2.19(t,J=7.2Hz,2H),2.10-1.97(m,1H),2.00(s,6H).
实施例7
N-(2-(3-羟基-3-甲基丁基)-7-(2-羟基丙-2-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000028
Figure PCTCN2019104281-appb-000029
称取3M MeMgCl(2.2mL,10eq),LiCl(282mg,10eq),加入无水THF(5mL)室温搅拌。将2d(300mg,0.66mmol)溶于无水THF(5mL),在冰浴下缓慢加到上述格氏试剂中,TLC检测至2d反应完全,加入饱和NH 4Cl溶液淬灭,乙酸乙酯(20mL×2)萃取两次,饱和食盐水(10mL)洗涤有机层,有机相用无水硫酸钠干燥,过滤,浓缩,硅胶柱层析,二氯甲烷/甲醇洗脱得到7(270mg,90%)。
LCMS m/z(ESI):451.2[M+H] +
1H NMR(400MHz,DMSO-d 6)δ10.29(s,1H),8.50-8.32(m,3H),8.22(d,J=1.8Hz,2H),8.18(s,1H),8.16(s,1H),7.53(d,J=1.8Hz,2H),5.18(s,1H),4.52(s,1H),4.88(t,J=8.0Hz,2H),2.05(t,J=8.0Hz,2H),1.70(s,6H),1.15(s,6H).
实施例8
N-(2-(2-(二甲基氨基)乙基)-7-甲氧基-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000030
第一步 合成2-(7-溴-5-硝基-2H-吲唑-2-基)-N,N-二甲基乙-1-胺
Figure PCTCN2019104281-appb-000031
反应管中加入1a(500mg,2.10mmol),8a(957mg,3eq),碳酸铯(2.05g,3eq),再加入DMF(20mL),加热至90℃反应。TLC监测直到1a反应完全,加入乙酸乙酯100mL,用饱和NaCl水溶液洗涤(10mL×3),无水硫酸钠干燥,过滤,浓缩,硅胶柱纯化(MeOH:DCM=1:20)得到8b(180mg,28%)。
第二步 合成7-溴-2-(2-(二甲基氨基)乙基)-2H-吲唑-5-胺
Figure PCTCN2019104281-appb-000032
烧瓶中加入8b(100mg,0.32mmol)、还原铁粉(180mg,10eq)、氯化铵(52mg,0.5eq)、乙醇(18mL)和水(2mL),加热至90℃反应。TLC监测直到8b反应完全,浓缩,加入乙酸乙酯100mL溶解,用饱和NaCl水溶液洗涤(10mL×3),无水硫酸钠干燥,过滤,浓缩,干燥得8c(60mg,67%)。
第三步 合成N-(7-溴-2-(2-(二甲基氨基)乙基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000033
反应管中加入6-(三氟甲基)吡啶-2-甲酸(100mg,0.52mmol),加入DCM(15mL)溶解,再加入草酰氯(263mg,2.10mmol),加入一滴DMF催化,室温反应30min,旋除DCM和草酰氯,再加入DCM溶解再次旋干,反复三次,备用。
称取8c(50mg,0.18mmol),TEA(90mg,5eq),加入DCM(20mL)溶解,将上述制备的6-三氟甲基吡啶-2-甲酰氯用DCM(10mL)溶解,缓慢加入到反应中,TLC监测直到8c反应完全,用饱和NaCl水溶液洗涤(10mL×3),无水硫酸钠干燥,过滤,浓缩,硅胶柱纯化(MeOH:DCM=1:20)得化合物8d(50mg,63%)。
第四步 合成N-(2-(2-(二甲基氨基)乙基)-7-甲氧基-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000034
反应管中加入8d(50mg,0.11mmol),CuI(42mg,2eq),MeONa溶液(5M甲醇溶液,5eq),无水二氧六环(10mL),加热至90℃反应。TLC监测直到8d反应完全,加入50mL乙酸乙酯稀释,用饱和NaCl水溶液(10mL×3)洗涤,无 水硫酸钠干燥,过滤,浓缩,硅胶柱纯化(MeOH:DCM=1:20)得化合物8(30mg,68%)。
LCMS m/z(ESI):408.2[M+H] +
1H NMR(400MHz,CDCl 3)δ9.77(s,1H),8.52(d,J=7.8Hz,1H),8.14(t,J=7.8Hz,1H),7.97(s,1H),7.88(d,J=7.8Hz,1H),7.82(s,1H),6.86(s,1H),4.52(t,J=6.8Hz,2H),4.08(s,3H),2.93(t,J=6.8Hz,2H),2.31(s,6H).
实施例9
N-(7-甲氧基-2-(四氢-2H-吡喃-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000035
第一步 合成7-溴-5-硝基-2-(四氢-2H-吡喃-4-基)-2H-吲唑
Figure PCTCN2019104281-appb-000036
反应瓶中加入1a(500mg,2.10mmol),9a(509mg,1.5eq),碳酸铯(3.04g,3eq)和DMF(20mL),加热至90℃反应。TLC监测直到原料1a反应完全,加入乙酸乙酯100mL,用饱和NaCl水溶液洗涤(10mL×3),无水硫酸钠干燥,过滤,浓缩,硅胶柱纯化(MeOH:DCM=1:20),得化合物9b(350mg,52%)。
第二步 合成7-溴-2-(四氢-2H-吡喃-4-基)-2H-吲唑-5-氨基
Figure PCTCN2019104281-appb-000037
反应瓶中加入9b(350mg,1.45mmol),还原铁粉(817mg,10eq),氯化铵(235mg,0.5eq),乙醇(18mL),水(2mL),加热至90℃反应。TLC监测直到原料9b反应完全,浓缩后加入乙酸乙酯100mL,用饱和NaCl水溶液洗涤(10mL×3),无水硫酸钠干燥,过滤,浓缩,得化合物9c(285mg,90%),直接投入下一步反应。
第三步 合成N-(7-溴-2-(四氢-2H-吡喃-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000038
反应瓶中加入6-(三氟甲基)吡啶-2-甲酸(555mg,2.91mmol),加入DCM(15mL)溶解,再加入草酰氯(550mg,4.36mmol),加入一滴DMF催化,室温反应30min,旋除DCM和草酰氯,再加入DCM溶解再次旋干,反复三次,备用。
称取9c(285mg,0.97mmol),TEA(488mg,5eq),加入DCM(20mL)溶解,将上述制备的6-三氟甲基吡啶-2-甲酰氯用DCM(10mL)溶解,缓慢加入到反应中,TLC监测直到9c反应完全,用饱和NaCl水溶液洗涤(10mL×3),无水硫酸钠干燥,过滤,浓缩,硅胶柱纯化(MeOH:DCM=1:20),得化合物9d(270mg,60%)。
第三步 合成N-(7-甲氧基-2-(四氢-2H-吡喃-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000039
反应管中加入9d(100mg,0.21mmol),CuI(82mg,2eq),MeONa溶液(5M甲醇溶液,5eq),无水二氧六环(10mL),加热至90℃反应。TLC监测直到原料9d反应完全,加入乙酸乙酯50mL,用饱和NaCl水溶液洗涤(10mL×3),无水硫酸钠干燥,过滤,浓缩,硅胶柱纯化(MeOH:DCM=1:20),得化合物9(62mg,69%)。
LCMS m/z(ESI):421.1[M+H] +
1H NMR(400MHz,CDCl 3)δ9.77(s,1H),8.52(d,J=7.9Hz,1H),8.13(t,J=7.9Hz,1H),7.93(s,1H),7.88(d,J=7.8Hz,1H),7.85(s,1H),6.85(s,1H),4.74-4.62(m,1H),4.20-4.11(m,2H),4.08(s,3H),3.63-3.55(m,2H),2.31-2.20(m,4H).
实施例10
N-(7-甲氧基-2-(1-甲基哌啶-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000040
第一步 合成4-(对甲苯磺酰氧基)哌啶-1-羧酸叔丁酯
Figure PCTCN2019104281-appb-000041
称取原料10a(10g,51.5mmol)溶于150mL二氯甲烷中,加入三乙胺(10.5g,102.9mmol)及DMAP(0.3g,2.6mmol)。室温搅拌下滴加溶于二氯甲烷的4-甲苯磺酰氯(14.7g,77.3mmol)。室温下反应,TLC监测至原料反应完。反应液用饱和食盐水洗涤(50mL×3),无水Na 2SO 4干燥,旋干后硅胶柱纯化(Hex:EA=5:1),得化合物10b(14.3g,80%)。
第二步 合成4-(7-溴-5硝基-2H-吲唑-2-基)哌啶-1-羧酸叔丁酯
Figure PCTCN2019104281-appb-000042
称取原料1a(3g,12.4mmol)溶于50mL DMF中,加入Cs 2CO 3(8g,24.8mmol),加热至70℃,将10b(6.5g,18.6mmol)溶于DMF中滴加到反应液中,70℃反应,TLC监测至原料1a反应完。加入150mL EA,用饱和食盐水洗涤(50mL×3),无水Na 2SO 4干燥,旋干后硅胶柱纯化(Hex:EA=3:1),得化合物10c(2.1g,40%)。
第三步 合成4-(5-氨基-7-溴-2H-吲唑-2-基)哌啶-1-羧酸叔丁酯
Figure PCTCN2019104281-appb-000043
称取原料10c(400mg,0.94mmol)、铁粉(265mg,5eq)和氯化铵(25mg,0.5eq),加入乙醇/水(20mL,体积比5/1),90℃反应直到原料10c反应完全,硅藻土过滤,旋干滤液,乙酸乙酯溶解(20mL),饱和NaHCO 3溶液(10mL×2)洗涤,无 水Na 2SO 4干燥,过滤旋除溶剂后得到10d直接投入下一步反应。
第四步 合成4-(7-溴-5-(6-(三氟甲基)吡啶-2-甲酰胺)-2H-吲唑-2-基)哌啶-1-羧酸叔丁酯
Figure PCTCN2019104281-appb-000044
称取6-三氟甲基吡啶甲酸(220mg,1.13mmol),用DCM(10mL)溶解,搅拌,加入草酰氯(290mg,2eq),滴入1滴DMF催化,室温反应直到原料6-三氟甲基吡啶甲酸反应完全,旋除溶剂,再加入DCM溶解再次旋干,反复三次,得到的酰氯备用。
将10d(0.94mmol)溶于20mL二氯甲烷,加入DIEA(440mg,3eq),室温下搅拌,将上述制备的酰氯溶于10mL DCM滴加到反应中,TLC检测至原料10d反应完全,加入饱和NaHCO 3溶液(10mL×2)洗涤,无水硫酸钠干燥,硅胶柱层析,二氯甲烷/甲醇洗脱分离出产物(430mg,两步反应80%)。
第五步 合成4-(7-甲氧基-5-(6-(三氟甲基)吡啶-2-甲酰胺)-2H-吲唑-2-基)哌啶-1-羧酸叔丁酯
Figure PCTCN2019104281-appb-000045
在50mL反应管中加入原料10e(430mg,0.75mmol),CuI(2eq),CH 3ONa溶液(5M甲醇溶液,10eq),无水二氧六环(25mL),加热至110℃反应。TLC监测至原料10e反应完全,加入乙酸乙酯(50mL)稀释,用饱和NaCl水溶液洗涤(10mL×2),无水硫酸钠干燥,过滤后旋除溶剂,硅胶柱纯化(MeOH:DCM=1:20),得化合物10f(300mg,77%)。
第六步 合成N-(7-甲氧基-2-(哌啶-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺盐酸盐
Figure PCTCN2019104281-appb-000046
反应瓶内加入10f(350mg,0.67mmol),4M dioxane/HCl(20mL),室温反应,TLC检测至原料反应完全,减压除去溶剂,30℃真空干燥,得到10g(280mg,91%)。 1H NMR(400MHz,D 2O)δ7.86(s,1H),7.66-7.57(m,2H),7.40(d,J=6.8Hz,1H),7.19(s,1H),6.32(s,1H),3.78–3.58(m,6H),3.27(t,J=12.4Hz,2H),2.41–2.20(m,4H)。
第七步 合成N-(7-甲氧基-2-(1-甲基哌啶-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺
Figure PCTCN2019104281-appb-000047
100mL单口瓶内加入10g(40mg,0.08mmol),5mL甲醛水溶液,冰醋酸0.5mL,乙腈0.5mL,60℃反应2小时后冷却至室温,加入氰基硼氢化钠(5.0eq),TLC检测至原料反应完全,减压旋出溶剂,加入饱和NaHCO 3溶液(10mL×2)洗涤,乙酸乙酯10mL×2萃取,有机相用无水硫酸钠干燥,过滤,减压浓缩,爬大板分离出10(28mg,75%)。
LCMS m/z(ESI):434.2[M+H] +
1H NMR(400MHz,CDCl 3)δ9.76(s,1H),8.50(d,J=7.8Hz,1H),8.12(t,J=7.8Hz,1H),7.93(s,1H),7.87(d,J=7.8Hz,1H),7.82(s,1H),6.84(s,1H),4.54-4.42(m,1H),4.07(s,3H),3.14-3.01(m,2H),2.38(s,3H),2.36-2.14(m,6H)。
生物学评价
IRAK4激酶活性测定
以下方法用于测定本发明优选化合物在体外条件下对IRAK4激酶活性的抑制程度。本方法使用Cisbio公司的
Figure PCTCN2019104281-appb-000048
KinEASE-STK S1丝/苏氨酸激酶试剂盒,通过测定生物素化的多肽底物磷酸化程度,以均相时间分辨荧光技术(HTRF)进行测定。
详细方法参考试剂盒说明书,将实验流程简述如下:将本发明中的化合物先溶解于DMSO中,终浓度为10mM。接着以试剂盒中提供的缓冲液进行等梯度稀释,使受试化合物在反应体系中的终浓度范围为16000nM~0.008nM,DMSO的终浓度小于2%。
测试的三磷酸腺苷(ATP)浓度为预先测定的对应ATP Km值(300μM)。将化合物、激酶、生物素化的多肽底物和ATP在37℃下孵育进行激酶反应1h,随后向反应体系中加入偶联有铕系元素化合物的抗磷酸化丝/苏氨酸抗体和偶联有修饰化的XL665链霉亲和素以终止反应,在室温下孵育1h。孵育结束后,在酶标仪FLUOstar Omega上,以HTRF模式在激发波长为337nm的条件下,读取各孔在发射波长为615nm和665nm的荧光强度,使用公式Ratio=(665nm/615nm)×10 4算出Ratio值。通过与对照组荧光强度比值进行对比,计算化合物在各浓度下的抑制率,进而通过GraphPad Prism5以对数浓度-抑制率进行非线性曲线拟合,计算化合物的IC 50值,见下表1。
表1 本发明化合物对IRAK4激酶抑制活性的IC 50
化合物 IC 50(nM)
4 2.4nM
5 8.3nM
10 5.7nM
对照化合物BAY-1834845 8.6nM
对照化合物BAY-1834845结构式如下:
Figure PCTCN2019104281-appb-000049
从表1可以看出,本发明化合物对IRAK4酶具有良好的抑制作用。化合物4的IRAK4酶抑制活性IC 50为2.4nM,与对照化合物BAY-1834845(WO2016083433实施例11)相比,显示出了更优异的IRAK4酶抑制活性,而化合物5和10具有与对照化合物BAY-1834845相当的IRAK4酶抑制活性。
溶解度测试
以下方法用于测定本发明优选化合物在磷酸缓冲盐溶液(PBS,pH7.4)中的溶解度。
称量1.5mg受试化合物,加入PBS,配制成理论浓度为2mg/mL的试液,超声10min,室温下旋转托盘旋转放置至少8h,旋转处理结束后,超声10min,13000rpm离心15min。轻取100μL上清液转移至0.6mL新管,旋转润洗5min。取500μL上清至润洗过的0.6mL管中,13000rpm离心15min,取上清液(或稀释)用LC-UV进样分析。样品浓度采用拟合标线定量(3点)。
表2 本发明化合物在磷酸缓冲盐溶液(PBS,pH7.4)中的溶解度
化合物 溶解度(uM)
5 692uM
10 74.7uM
对照化合物BAY-1834845 6.7uM
从表2可以看出,本发明的优选化合物5和10在磷酸缓冲盐溶液(PBS,PH7.4)中的溶解度分别为692uM和74.7uM,与对照化合物BAY-1834845(WO2016083433实施例11)6.7uM的溶解度相比,具有更优异的溶解度,这对于后续口服剂型的开发具有更大的便利性和优势。
我们创新性使用的7-取代吲唑类衍生物作为一种新的骨架分子,与BAY-1834845的6-取代吲唑衍生物骨架不同,进一步拓展了吲唑衍生物的应用。因此,本发明的化合物有望用于IRAK4抑制剂及其相关疾病的治疗。

Claims (9)

  1. 一种式(I)所示的化合物或其立体异构体、互变异构体或其药学上可接受的盐:
    Figure PCTCN2019104281-appb-100001
    其中:
    R 1选自C 1-C 6烷基、C 3-C 8环烷基、杂环烷基、芳基或杂芳基;其中所述的芳基或杂芳基任选进一步被一个或多个选自卤素、羟基、-NR aR b、氰基、卤代烷基、-CONR AR B、C 1-C 6烷基、C 3-C 8环烷基、杂环烷基或杂芳基的取代基所取代;
    R 2选自C 1-C 6烷基、C 3-C 8环烷基、卤素、烷氧基、氰基、羟基、硝基、-NR aR b、-CONR AR B、-SO 2R C、卤代烷基、羟基烷基、杂环烷基、芳基或杂芳基;其中所述的C 1-C 6烷基、C 3-C 8环烷基、杂环烷基、芳基或杂芳基任选进一步被一个或多个选自卤素、羟基、-NR aR b、氰基、卤代烷基、氧代基(O=)、C 1-C 6烷基、-COR D、-SO 2R C、-CONR AR B或-SO 2NR ER F的取代基所取代;
    R 3选自氰基、烷氧基、卤代烷基、-NR aR b、-CONR AR B、-SO 2NR ER F、C 1-C 6烷基、C 3-C 8环烷基、杂环烷基或杂芳基;其中所述的C 1-C 6烷基、C 3-C 8环烷基、杂环烷基或杂芳基任选进一步被一个或多个选自卤素、羟基、-NR aR b、氰基、卤代烷基、氧代基(O=)、C 1-C 6烷基、-COR D、-SO 2R C、-CONR AR B或-SO 2NR ER F的取代基所取代;
    R a和R b独立地选自氢原子、-COR D、-SO 2R C、C 1-C 6烷基、C 3-C 8环烷基、芳基或杂芳基;其中所述的C 1-C 6烷基、C 3-C 8环烷基、芳基或杂芳基任选进一步被一个或多个选自卤素、羟基、烷氧基、-NR aR b、氰基、卤代烷基、-CONR AR B或-SO 2NR ER F的取代基所取代;或者R a和R b与其所连接的氮原子形成4到8元具有一个或多个选自氮、氧、硫原子的杂环、稠环或螺环,其中,所述杂环、稠环或螺环任选进一步被一个或多个氧代基(O=)取代;
    R A、R B、R E和R F独立地选自氢原子、C 1-C 6烷基或C 3-C 8环烷基;其中所述烷基或环烷基任选进一步被一个或多个选自卤素、羟基、氰基或卤代烷基的取 代基所取代;
    R C和R D独立地选自C 1-C 6烷基或C 3-C 8环烷基;其中所述烷基或环烷基任选进一步被一个或多个选自卤素、羟基、氰基或卤代烷基的取代基所取代;
    W选自共价键、O、NH或-(CH 2) n-,其中n为1-4的整数;
    G选自共价键或-(CH 2) n-,其中n为1-4的整数。
  2. 根据权利要求1所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,其中R 1为芳基或杂芳基,其中所述的芳基或杂芳基任选进一步被一个或多个选自卤素、羟基、-NR aR b、氰基、卤代烷基、-CONR AR B、C 1-C 6烷基或杂芳基的取代基所取代;其中,R a、R b、R A和R B的定义如权利要求1中所述。
  3. 根据权利要求1-2所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,其中,R 1选自以下基团:
    Figure PCTCN2019104281-appb-100002
    *代表基团连接至式(I)化合物其余部分的位置。
  4. 根据权利要求1-3任一项所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,其中R 2为C 1-C 6烷基、C 3-C 8环烷基、卤素、烷氧基、氰基、硝基、-NR aR b、-CONR AR B、-SO 2R C、羟基烷基、杂环烷基、杂芳基,其中,R a、R b、R A、R B和R C的定义如权利要求1中所述。
  5. 根据权利要求1-4任一项所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,其中R 3为C 1-C 6烷基或杂环烷基,其中所述的C 1-C 6烷基或杂环烷基任选进一步被一个或多个选自卤素、羟基、-NR aR b、氰基、卤代烷基、氧代基(O=)、C 1-C 6烷基、-COR D、-SO 2R C、-CONR AR B或-SO 2NR ER F的取代基所取代,其中,R A、R B、R C、R D、R E和R F的定义如权利要求1中所述。
  6. 根据权利要求1-5任一项所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,其为:
    Figure PCTCN2019104281-appb-100003
    N-(7-溴-2-(3-羟基-3-甲基丁基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;
    Figure PCTCN2019104281-appb-100004
    2-(3-羟基-3-甲基丁基)-5-(6-(三氟甲基)吡啶-2-甲酰胺)-2H-吲唑-7-甲酰胺;
    Figure PCTCN2019104281-appb-100005
    2-(3-羟基-3-甲基丁基)-N,N-二甲基-5-(6-(三氟甲基)吡啶-2-甲酰胺)-2H-吲唑-7-甲酰胺;
    Figure PCTCN2019104281-appb-100006
    N-(2-(3-羟基-3-甲基丁基)-7-(1H-吡唑-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;
    Figure PCTCN2019104281-appb-100007
    N-(2-(3-羟基-3-甲基丁基)-7-甲氧基-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;
    Figure PCTCN2019104281-appb-100008
    N-(7-环丙基-2-(3-羟基-3-甲基丁基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;
    Figure PCTCN2019104281-appb-100009
    N-(2-(3-羟基-3-甲基丁基)-7-(2-羟基丙-2-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;
    Figure PCTCN2019104281-appb-100010
    N-(2-(2-(二甲基氨基)乙基)-7-甲氧基-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;
    Figure PCTCN2019104281-appb-100011
    N-(7-甲氧基-2-(四氢-2H-吡喃-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺;或
    Figure PCTCN2019104281-appb-100012
    N-(7-甲氧基-2-(1-甲基哌啶-4-基)-2H-吲唑-5-基)-6-(三氟甲基)吡啶-2-甲酰胺。
  7. 一种药物组合物,含有有效剂量的根据权利要求1-6中任一项所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,以及任选的可药用的载体、赋形剂或它们的组合。
  8. 根据权利要求1-6中任一项所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,或根据权利要求7所述的药物组合物在制备用于抑制IRAK4激酶的活性的药物中的用途。
  9. 根据权利要求1-6中任一项所述的化合物或其立体异构体、互变异构体或其药学上可接受的盐,或根据权利要求7所述的药物组合物在制备用于预防或治疗自身免疫性疾病、炎性疾病或癌症的药物中的用途,其中所述的自身免疫性疾病、炎性疾病或癌症优选自淋巴瘤、子宫内膜异位症、银屑病、红斑狼疮、多发硬化症或类风湿性关节炎;其中所述的淋巴瘤优选为带有MYD88 L265P突变的原发性中枢神经***淋巴瘤或弥漫性大B细胞淋巴瘤。
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