WO2012031383A1 - 酰胺类化合物 - Google Patents

酰胺类化合物 Download PDF

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WO2012031383A1
WO2012031383A1 PCT/CN2010/076652 CN2010076652W WO2012031383A1 WO 2012031383 A1 WO2012031383 A1 WO 2012031383A1 CN 2010076652 W CN2010076652 W CN 2010076652W WO 2012031383 A1 WO2012031383 A1 WO 2012031383A1
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group
substituted
unsubstituted
compound
piperazinyl
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PCT/CN2010/076652
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English (en)
French (fr)
Inventor
胡文辉
钟桂发
杨玲
徐宏江
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中国科学院广州生物医药与健康研究院
江苏正大天晴药业股份有限公司
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Application filed by 中国科学院广州生物医药与健康研究院, 江苏正大天晴药业股份有限公司 filed Critical 中国科学院广州生物医药与健康研究院
Priority to PCT/CN2010/076652 priority Critical patent/WO2012031383A1/zh
Priority to GB1305247.7A priority patent/GB2497476B/en
Priority to DE112010005848.2T priority patent/DE112010005848B4/de
Priority to JP2013527433A priority patent/JP5916730B2/ja
Priority to US13/821,165 priority patent/US9238643B2/en
Publication of WO2012031383A1 publication Critical patent/WO2012031383A1/zh

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    • C07D403/00Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/12Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
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    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/496Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
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    • A61K31/495Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/50Pyridazines; Hydrogenated pyridazines
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    • A61K31/505Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
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    • A61K31/505Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
    • A61K31/517Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with carbocyclic ring systems, e.g. quinazoline, perimidine
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    • C07D207/30Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
    • C07D207/34Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two 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
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    • 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
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    • C07D237/06Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D237/10Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having 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
    • C07D237/24Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
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    • C07D239/26Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
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    • C07D333/04Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/26Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom 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
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Definitions

  • the present application relates to the field of organic chemistry and medicinal chemistry, and more particularly, the present application relates to amide-based compounds.
  • glial cells microglia and astrocytes. This hyperactive state of glia results in higher levels of inflammation and oxidative stress in the molecule, leading to neuronal damage or death. Neuronal damage or death can also induce glial activation and promote localized endemic transmission of neuroinflammation.
  • Neuroinflammatory diseases include Alzheimer's disease (Alzheimer's disease), Parkinson's disease, amyotrophic lateral sclerosis, autoimmune disease, scorpion venom, stroke, traumatic brain injury, spinal muscular atrophy Symptoms, multiple sclerosis, epilepsy, neuropathic pain, etc.
  • AD Alzheimer's disease
  • SPs senile plaques
  • NFTs neurofibrillary tangles
  • Piperazine compounds have the effect of selectively inhibiting the glial activation pathway (see
  • a pyridazine compound for treating a neuroinflammatory disease is disclosed in Chinese Patent No. CN101754762. Wenhui Hu et al. (Reference Bioorganic &
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane base;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl group; and Ar is selected from a substituted or unsubstituted heteroaryl group, provided that the heteroaryl group is not hydrazine.
  • the present application is directed to a compound of formula I and pharmaceutically acceptable salts thereof:
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane a substituent selected from the group consisting of an aryl group, an arylalkyl group, an alkyl group, an alkoxy group, an alkyl group, and a halogen Or a hydroxyl group, an amino group or a cyano group;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl;
  • Ar is selected from a substituted or unsubstituted heteroaryl group, provided that the heteroaryl group is not hydrazine, and the substituent is selected from the group consisting of alkyl, alkoxy, alkyl, nitro, hydroxy, amino, aryl, Arylalkyl or aryloxy.
  • the present application relates to a process for the preparation of a compound of formula I and pharmaceutically acceptable salts thereof, which comprises the following reaction:
  • RR 2 , R 3 , R 4 , R 5 , Ar are as defined above, and R 6 is hydrogen or alkyl.
  • the present application relates to a pharmaceutical composition comprising a therapeutically effective amount of a compound of formula I or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier thereof:
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane base;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl group; and Ar is selected from a substituted or unsubstituted heteroaryl group, provided that the heteroaryl group is not hydrazine.
  • the present application relates to a method of inhibiting secretion of IL- ⁇ by microglia comprising contacting a therapeutically effective amount of a compound of formula I or a pharmaceutically acceptable salt thereof with microglia:
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane base;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl group; and Ar is selected from a substituted or unsubstituted heteroaryl group, provided that the heteroaryl group is not hydrazine.
  • the present application relates to a method of treating and preventing a neuroinflammatory disease or disease state mediated by IL- ⁇ , comprising administering to a subject in need thereof a therapeutically effective amount of a compound of formula I or
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane base;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl;
  • Ar is selected from substituted or unsubstituted heteroaryl groups, provided that the heteroaryl group is not hydrazine.
  • the present application relates to a method of treating and preventing Alzheimer's disease (Alzheimer's disease) comprising administering to a subject in need of such a method a therapeutically effective amount of a compound of formula I or a pharmaceutically acceptable salt thereof:
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane base;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl group; and Ar is selected from a substituted or unsubstituted heteroaryl group.
  • the tube symbol (such as C 4 ) of the total number of carbon atoms found in the chemical group shown is in front
  • Certain chemical groups named herein are indicated.
  • c 7 -c 12 alkyl describes an alkyl group as defined below having a total of from 7 to 12 carbon atoms
  • a C 4 -C 12 cycloalkylalkyl group describes the following definition having a total of from 4 to 12 carbon atoms Cycloalkylalkyl.
  • the total number of carbon atoms in the barrel symbol does not include carbon that may be present in the substituents of the group.
  • halogen means fluoro, chloro, bromo or iodo.
  • alkyl refers to a straight or branched saturated aliphatic hydrocarbon group consisting of a carbon atom and a hydrogen atom, which is linked to the remainder of the molecule by a single bond.
  • the alkyl group contains 1 to 6 carbon atoms, and specific examples of the alkyl group include, but are not limited to, mercapto, ethyl, propyl, isopropyl, n-butyl, isobutyl or t-butyl, pentyl, 2 - mercaptobutyl, neopentyl, n-hexyl and the like.
  • the alkyl group can be substituted or unsubstituted.
  • haloalkyl denotes an "alkyl” substituted by one or more "halogen” atoms, including primary alkyl, dialkyl, trialkyl, full alkyl, etc., specific examples of alkyl include but It is not limited to chloromethyl, dichloroindenyl, difluoroindenyl, trifluoromethyl, perfluoroethyl or 2,2,2-trifluoroethyl.
  • alkoxy refers to a -alkyl group, and specific examples of alkoxy include, but are not limited to, decyloxy, ethoxy, propoxy, isopropoxy, n-butoxy, isobutyl Oxyl, tert-butoxy, n-pentyloxy, 2-decylbutoxy, neopentyloxy, n-hexyloxy and the like.
  • amino refers to a -NH 2 group, an -NH (alkyl) group, and -N (alkyl) 2 .
  • Specific examples of the amino group include, but are not limited to, -NH 2 , -NHCH 3 , -N(CH 3 ) 2 , -NHCM alkyl,
  • aryl refers to an all-carbon monocyclic or fused polycyclic aromatic ring group having a fully conjugated ⁇ -electron system.
  • an aryl group has 6 to 14 carbon atoms.
  • the aryl has 6 to 10 carbon atoms.
  • the aryl has 6 carbon atoms.
  • Specific examples of the aryl group include, but are not limited to, a phenyl group, a naphthyl group, an anthracenyl group and the like.
  • C 6 -C 1Q aryl means an aryl group as defined above containing six to ten carbon atoms.
  • arylalkyl refers to an alkyl group substituted with an aryl group as defined above. Specific examples of the arylalkyl group include, but are not limited to, -CH 2 -phenyl, -(CH 2 ) 2 -phenyl, -(CH 2 ) 3 -phenyl, -CH 2 -CH(CH 3 )-phenyl -(CH 2 )4-phenyl, -CH 2 -CH(CH 3 )-CH 2 -phenyl, -CH 2 -CH 2 -CH(CH 3 )-phenyl, and the like.
  • C 7 -C 20 arylalkyl means an arylalkyl group as defined above containing seven to twenty carbon atoms.
  • heteroaryl refers to a monocyclic or bicyclic aromatic ring group having 5 to 10 atoms, wherein at least one hetero atom selected from N, 0 or S is contained, and the remaining atoms are C. There is a fully conjugated ⁇ -electron system.
  • Specific examples of heteroaryl groups include, but are not limited to, pyridazine, quinoline Jun morpholine, pyrazole Luo, P J points, indole Jun, pyrazolyl Jun, P Kui morpholine, pyrazole 11 set, P fu furans, Mi Jun, pyrazolyl 13 Qin, pyrimidine , thiazole, isoquinoline, benzothiazole or diazepine.
  • Heteroaryl groups can be substituted or unsubstituted.
  • cycloalkyl refers to a saturated cycloalkane containing from 3 to 10 carbon atoms.
  • Specific examples of the cycloalkyl group include, but are not limited to, a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, an adamantyl group and the like.
  • the cycloalkyl group can be substituted or unsubstituted.
  • heterocycloalkyl means a saturated cycloalkane having 3 to 10 atoms, wherein at least one hetero atom selected from N, 0 or S is contained, and the remaining atoms are C.
  • a heterocycloalkyl group has from 3 to 6 atoms.
  • Specific examples of heterocycloalkyl groups include, but are not limited to, dioxocyclopentyl.
  • substituted means that one or more hydrogen atoms on a group are independently substituted with the same or different substituents.
  • substituents include, but are not limited to, hydroxy, amino, nitro, cyano, phenyl, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl, heterocycloalkyl, and the like. .
  • pharmaceutically acceptable carrier includes, but is not limited to, any adjuvant, carrier, excipient, glidant, sweetener, diluent, which has been approved by the U.S. Food and Drug Administration for use in humans or animals. Preservatives, dyes/colorants, flavor enhancers, surfactants, wetting agents, dispersants, suspending agents, stabilizers, isotonic agents, solvents or emulsifiers, etc., which have no side effects on the composition of the pharmaceutical composition.
  • the form of the carrier includes, but is not limited to, any adjuvant, carrier, excipient, glidant, sweetener, diluent, which has been approved by the U.S. Food and Drug Administration for use in humans or animals. Preservatives, dyes/colorants, flavor enhancers, surfactants, wetting agents, dispersants, suspending agents, stabilizers, isotonic agents, solvents or emulsifiers, etc.
  • “Pharmaceutically acceptable salts” include “pharmaceutically acceptable acid addition salts” and “pharmaceutically acceptable base addition salts”.
  • “Pharmaceutically acceptable acid addition salt” refers to those salts which retain the biological effectiveness and properties of the free base, which are biologically or otherwise suitable and which are formed using inorganic or organic acids.
  • the inorganic acid is, for example but not limited to, hydrochloric acid, hydrobromic acid, sulphuric acid, nitric acid, phosphoric acid, etc.
  • the organic acid is, for example but not limited to, acetic acid, 2,2-dichloroacetic acid, adipic acid, alginic acid, Ascorbic acid, aspartic acid, benzoic acid, benzoic acid, 4-acetamidobenzenecarboxylic acid, camphoric acid, camphor-10-sulfonic acid, citric acid, caproic acid, caprylic acid, carbonic acid, cinnamic acid, citric acid, Cyclohexane-amino acid, dodecyl sulfate, ethane-1,2-di-cross-acid,
  • “Pharmaceutically acceptable base addition salt” refers to those salts which retain the biological effectiveness and properties of the free acid, which are biologically or otherwise suitable. These salts are prepared by adding an inorganic base or an organic base to the free acid. Salts derived from inorganic bases include, but are not limited to, sodium, potassium, lithium, ammonium, calcium, magnesium, iron, hexahydrate, copper, manganese, aluminum salts, and the like. Preferred inorganic salts are the ammonium, sodium, potassium, calcium and magnesium salts.
  • Salts derived from organic bases include, but are not limited to, salts of primary, secondary and tertiary amines, substituted amines including naturally occurring substituted amines, salts of cyclic amines and basic ion exchange resins, such as ammonia, isopropylamine, Tridecylamine, diethylamine, triethylamine, tripropylamine, diethanolamine, ethanolamine, dimercaptoethanol, 2-diaminoethanol, 2-diethylaminoethanol, dicyclohexylamine, lysine, refined ammonia Acid, histidine, caffeine, procaine, seabamin, choline, betaine, benzylamine, phenethylenediamine, ethylenediamine, glucosamine, decyl glucosamine, theobromine, triethanolamine , tromethamine, hydrazine, piperazine, piperidine, N-ethylpiperidine, polyamine resin, and
  • composition refers to a formulation of a compound of the present invention and a medium which is generally accepted in the art for delivery of a biologically active compound to a mammal such as a human.
  • media include all pharmaceutically acceptable carriers.
  • terapéuticaally effective amount means an amount of a compound which is sufficient to effectively treat (as defined below) a mammalian, preferably human, IL- ⁇ mediated disease or condition when administered to a mammal, preferably to a human.
  • the amount of the compound of the present application which constitutes a “therapeutically effective amount” will vary depending on the compound, the state of the disease and its severity, and the age of the mammal to be treated, but those skilled in the art will be able to rely on their own knowledge and the present disclosure.
  • the formula determines the amount of the compound of the present application.
  • treating encompasses a mammal having a related disease or condition, preferably a treatment-related disease or condition in a human, and includes:
  • disease and “disease state” may be used interchangeably or may be different, as a particular disease or condition may not have a known causative agent (and therefore cannot be explained by etiology). Therefore, it is not recognized as a disease, but is considered to be an undesired disease state or condition in which the clinician has identified more or less specific series of symptoms. Specific implementation
  • the application relates to a compound of formula I and pharmaceutically acceptable salts thereof:
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane base;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl;
  • Ar is selected from substituted or unsubstituted heteroaryl groups, provided that the heteroaryl group is not hydrazine.
  • the substituent of R ⁇ 1> is selected from aryl, arylalkyl, alkyl, alkoxy, alkyl, hydrazino, hydroxy, amino or cyano.
  • the substituent of Ar is selected from alkyl, alkoxy, alkyl, halogen, nitro, hydroxy, amino, aryl, arylalkyl or aryloxy.
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane a substituent selected from the group consisting of an aryl group, an arylalkyl group, an alkyl group, an alkoxy group, an alkyl group, a halogen, a hydroxyl group, an amino group or a cyano group;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl;
  • Ar is selected from a substituted or unsubstituted heteroaryl group, provided that the heteroaryl group is not hydrazine, and the substituent is selected from the group consisting of alkyl, alkoxy, alkyl, nitro, hydroxy, amino, aryl, Arylalkyl or aryloxy.
  • the alkyl group is selected from the group consisting of CC 6 alkyl.
  • the cycloalkyl is selected from C. Cycloalkyl.
  • the aryl group is selected from the group consisting of c 6 -c 1() aryl.
  • the heteroaryl is selected from heteroaryl groups of five to ten atoms.
  • a heterocycloalkyl group is selected from a heterocycloalkyl group of three to ten atoms, a heterocycloalkyl group of three to eight atoms, or a heterocycloalkyl group of three to six atoms.
  • R 1 is selected from substituted or unsubstituted CC 6 alkyl, substituted or unsubstituted C. Cycloalkyl, substituted or unsubstituted QT. Aryl or substituted or unsubstituted heteroaryl of five to ten atoms, wherein the substituent is selected from aryl, arylalkyl, alkyl, alkoxy, alkyl, hydroxy, amino or cyano .
  • R 1 is selected from substituted or unsubstituted C r C 6 alkyl group, a substituted or unsubstituted c 3 -c 1 () cycloalkyl group, a substituted or unsubstituted phenyl, substituted or unsubstituted a substituted pyrimidinyl group, a substituted or unsubstituted pyridyl group or a substituted or unsubstituted pyrazinyl group, wherein the substituent is selected from the group consisting of an aryl group, an arylalkyl group, an alkyl group, an alkoxy group, an alkyl group, a hydroxy group, a hydroxyl group, Amino or cyano.
  • R 1 is selected from substituted or unsubstituted CC 6 alkyl, substituted or unsubstituted C 3 -C 1Q cycloalkyl, substituted or unsubstituted phenyl, substituted or unsubstituted pyrimidinyl And a substituted or unsubstituted pyridyl group or a substituted or unsubstituted pyrazinyl group, wherein the substituent is selected from the group consisting of an anthracenyl group, an ethyl group, a fluorine group, a chlorine group, a bromine group, a hydroxyl group, a decyloxy group, and a trifluoromethyl group.
  • R 1 is selected from the group consisting of phenyl, 4-fluorophenyl, 2,4-difluorophenyl, 2-fluorophenyl, 4-chlorophenyl, 3-chlorophenyl, 4-bromo Phenyl, 4-hydroxyphenyl, 4-nonylphenyl, 2-decyloxyphenyl, 3-decyloxyphenyl, 4-decyloxyphenyl, 2-ethyl-4-fluorophenyl , 3-trifluorodecylphenyl, 2,3-dichlorophenyl, 2-chloro-6-fluorophenyl, 3,4-didecylphenyl, 3,4-dimethoxyphenyl, Pyrimidin-2-yl, 5-fluoropyrimidin-2-yl, 5-bromopyrimidin-2-yl, pyridin-2-yl, pyridin-4-yl, 5-mercaptopyridin-2-yl
  • R 1 is selected from the group consisting of 4-fluorophenyl, 2,4-difluorophenyl, pyrimidin-2-yl, pyridin-2-yl, 5-fluoropyrimidin-2-yl, pyrazine- 2-Based, pyridin-4-yl, decyl, isopropyl or cyclohexyl.
  • R 2 , R 3 , R 4 , R 5 are each independently selected from hydrogen, alkyl, alkoxy, phenyl or phenylalkyl.
  • R 2 , R 3 , R 4 , R 5 are each selected from hydrogen.
  • Ar is selected from substituted or unsubstituted pyridazinyl, substituted or unsubstituted quinazolinyl, substituted or unsubstituted pyrrolyl, substituted or unsubstituted thienyl, substituted or unsubstituted Carbazolyl or substituted or unsubstituted pyrazolyl.
  • Ar is selected from substituted or unsubstituted pyridazinyl, wherein the substituent is selected from the group consisting of alkyl, alkoxy, alkyl, a, amino, and aryl. In certain embodiments, Ar is selected from substituted or unsubstituted pyridazinyl, and the substituent is selected from decyl, phenyl, decyloxy, trifluoromethyl, amino or chloro.
  • Ar is selected from the group consisting of 4-indolyl-6-phenylpyridazin-3-yl, 6-phenylpyridazin-3-yl, 6-mercaptopyridazin-3-yl, 6- ⁇ oxypyridazin-3-yl, 6-trifluorodecylpyridazin-3-yl, 6-aminopyridazin-3-yl, 6-chloropyridazin-3-yl, pyridazin-4-yl, 2-phenylquinazolin-4-yl, quinazolin-4-yl, 2-trifluorodecyl quinazolin-4-yl, 7-decyloxyquinazolin-4-yl, pyrrole-2 -yl, pyrrol-3-yl, 4-mercaptopyrrol-2-yl, 1-phenylpyrrol-3-yl, 2,4-dimercaptopyrrolidin-3-yl, 3,5-dimer
  • Ar is selected from the group consisting of 4-mercapto-6-phenylpyridazin-3-yl, 2-phenylquinazolin-4-yl, pyrrol-2-yl, thiophen-2-yl, Oxazol-3-yl, 5-fluorooxazol-3-yl, 4,7-difluorooxazol-3-yl, 5-chlorooxazol-3-yl, 5-isopropylpyrazole-3- base.
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, wherein the substituent Selected from aryl, arylalkyl, alkyl, alkoxy, alkyl, hydroxy, amino, cyano; R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, Nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl, heterocyclic; Ar is selected from substituted or unsubstituted pyridazinyl, substituted Or an unsubstituted quinazolinyl group, a substituted or unsubstituted pyrrolyl group, a substituted or unsubstituted thien
  • R 1 is selected from substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, wherein the substituent is selected from Aryl, arylalkyl, alkyl, alkoxy, fluoroalkyl, hydroxy, amino or cyano; R 2 , R 3 , R 4 , R 5 are each selected from hydrogen; Ar is selected from substituted or unsubstituted Substituted pyridazinyl, substituted or unsubstituted fluorenyl, substituted or unsubstituted quinazolinyl, substituted or unsubstituted pyrrolyl, substituted or unsubstituted thienyl, substituted or unsubstituted oxazolyl or A substituted or unsubstituted pyrazolyl group wherein the substituent is selected from Aryl
  • R 1 is selected from substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted phenyl, substituted or unsubstituted pyrimidinyl, substituted or unsubstituted pyridine Or a substituted or unsubstituted pyrazinyl group, wherein the substituent is selected from aryl, arylalkyl, alkyl, alkoxy, alkyl, hydroxy, amino or cyano; R 2 , R 3 , R 4 and R 5 are selected from hydrogen; and Ar is selected from substituted or unsubstituted pyridazinyl, wherein the substituent is selected from an alkyl group, an alkoxy group, an alkyl group, a aryl group, an amino group or an aryl group.
  • R 1 is selected from substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted phenyl, substituted or unsubstituted pyrimidinyl, substituted or unsubstituted pyridine Or a substituted or unsubstituted pyrazinyl group, wherein the substituent is selected from the group consisting of fluorenyl, ethyl, fluoro, chloro, bromo, hydroxy, decyloxy or trifluoromethyl; R 2 , R 3 , RR 5 are selected from hydrogen Ar is selected from substituted or unsubstituted pyridazinyl, wherein the substituent is selected from decyl, phenyl, decyloxy, trifluoromethyl, amino or chloro.
  • the compound of Formula I is selected from the group consisting of the following compounds or pharmaceutically acceptable salts thereof:
  • the present application relates to the preparation of a compound of formula I and
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkyl ;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl group;
  • Ar is selected from a substituted or unsubstituted heteroaryl group, provided that the heteroaryl group is not a hydrazine;
  • R 6 is hydrogen or an alkyl group.
  • the substituent of R ⁇ 1> is selected from aryl, arylalkyl, alkyl, alkoxy, alkyl, hydrazino, hydroxy, amino or cyano.
  • the substituent of Ar is selected from an alkyl group, an alkoxy group, an alkyl group, a nitro group, a hydroxyl group, an amino group, an aryl group, an arylalkyl group, or an aryloxy group.
  • the scheme comprises: reacting a compound of formula A and formula B in an organic solvent in the presence of a condensing agent to provide a compound of formula I and salts thereof.
  • the condensing agent is selected from the group consisting of dicyclohexylcarbodiimide (DCC), diisopropylcarbodiimide (DIC), ethyldidecylaminopropylcarbodiimide (EDC) or ethyldidecylaminopropane Carbodiimide hydrochloride (EDCI).
  • the organic solvent is selected from the group consisting of dichlorodecane or tetrahydrofuran.
  • the compound of the formula A and the formula B is mixed, dichloromethane or tetrahydrofuran is added, and a condensing agent is added, and the mixture is extracted with dichloromethane. The obtained organic phase is dried over anhydrous sodium sulfate and concentrated. Column chromatography gave the compound of formula I.
  • Ar when Ar is a substituted or unsubstituted pyridazine or substituted or not taken a quinazoline, when R 6 is hydrogen, It is synthesized by the following methods:
  • Hal represents halogen, such as chlorine, bromine, iodine, etc.
  • the raw material Ar-hal is commercially available, or according to international application WO 2008/023357 or Prepared by the method disclosed in WO 2007/127375.
  • the substituted or unsubstituted oxazine or substituted or unsubstituted quinazoline (A "mono") is mixed with cuprous cyanide or potassium cyanide to carry out the reaction.
  • pyridine or hydrazine, hydrazine-dihydrazinamide is added, and the mixture is at 60. - 160.
  • C was filtered, diluted hydrochloric acid was added and extracted with ethyl acetate. The organic phase was dried over anhydrous sodium sulfate. EtOAc evaporated. The aqueous phase was adjusted to pH 2 with dilute aqueous EtOAc.
  • the molar ratio of substituted or unsubstituted oxazine or substituted or unsubstituted quinazoline halide to cuprous cyanide is 1: 1.0-2.0, preferably 1: 1.8, more preferably 1: 1.5
  • the reaction time is 2-48 hours, preferably 24 hours, more preferably 2 hours; and the reaction temperature is 60-160 ° C, preferably 130 ° C, more preferably 80 ° C.
  • the present application relates to a pharmaceutical composition
  • a pharmaceutical composition comprising a therapeutically effective amount of Formula I
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane base;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl group; and Ar is selected from a substituted or unsubstituted heteroaryl group, provided that the heteroaryl group is not hydrazine.
  • the substituent of R ⁇ 1> is selected from aryl, arylalkyl, alkyl, alkoxy, alkyl, hydrazino, hydroxy, amino or cyano.
  • the substituent of Ar is selected from alkyl, alkoxy, alkyl, halogen, nitro, hydroxy, amino, aryl, arylalkyl or aryloxy.
  • compositions of the present application may be in liquid, semi-liquid or solid form.
  • Examples of pharmaceutically acceptable carriers that can be used in the pharmaceutical compositions of the present application include, but are not limited to, any adjuvants, carriers, excipients, helpers that have been approved by the U.S. Food and Drug Administration for use in humans or poultry.
  • Agents sweeteners, diluents, preservatives, dyes/colorants, flavor enhancers, surfactants, wetting agents, dispersing agents, suspending agents, stabilizers, isotonic agents, solvents or emulsifiers.
  • the pharmaceutical compositions of the present application are prepared as tablets, solutions, granules, patches, ointments for parenteral, transdermal, mucosal, nasal, buccal, sublingual or oral use. , capsules, aerosols or suppositories.
  • the oral pharmaceutical composition can be a solid, a gel or a liquid.
  • solid preparations include, but are not limited to, tablets, capsules, granules, and bulk powders. These preparations may optionally contain a binder, a diluent, a disintegrant, a lubricant, a glidant, a sweetener, a flavoring agent and the like.
  • binders include, but are not limited to, microcrystalline cellulose, dextrose solution, gum arabic, gelatin solution, sucrose, and starch paste;
  • examples of lubricants include, but are not limited to, talc, starch, magnesium stearate, calcium stearate And stearic acid;
  • examples of diluents include, but are not limited to, lactose, sucrose, starch, mannitol, dicalcium phosphate;
  • examples of glidants include, but are not limited to, silica;
  • examples of disintegrants include, but are not limited to, Sodium biscarboxylated cellulose, sodium starch glycolate, alginic acid, corn starch, potato starch, sulfhydryl cellulose, agar and carboxymethyl cellulose.
  • compositions of the present application are administered parenterally, generally by injection, including subcutaneous, intramuscular or intravenous injection.
  • the injection can be formulated into any conventional form such as a liquid solution or suspension, a solid form or emulsion suitable for dissolution or suspension in a liquid prior to injection.
  • pharmaceutically acceptable carriers include, but are not limited to, aqueous carriers, nonaqueous vehicles, antimicrobial agents, isotonic agents, buffers, antioxidants, suspending and dispersing agents, emulsifying agents, chelating agents And other pharmaceutically acceptable substances.
  • Examples of the aqueous carrier include sodium chloride injection, forest format injection, isotonic glucose injection, sterile water injection, glucose and lactated Ringer's injection; examples of the nonaqueous carrier include fixed oil of plant origin, Cottonseed oil, corn oil, sesame oil and peanut oil; examples of the antimicrobial agent include meta-phenol, benzyl alcohol, chlorobutanol, benzalkonium chloride, etc.; examples of isotonic agents include sodium chloride and glucose; buffers include phosphate And citrate.
  • compositions of the present application may also be prepared as sterile lyophilized powders in which the compound is dissolved in a sodium phosphate buffer solution containing glucose or other suitable excipients, followed by standard conditions known to those skilled in the art.
  • the solution is sterile filtered and then lyophilized to give the desired formulation.
  • the present application relates to a method for inhibiting secretion of IL- ⁇ by microglia, the salt of which is coated with microglia
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane base;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl group; and Ar is selected from a substituted or unsubstituted heteroaryl group, provided that the heteroaryl group is not hydrazine.
  • the substituent of R ⁇ 1> is selected from aryl, arylalkyl, alkyl, alkoxy, alkyl, hydrazino, hydroxy, amino or cyano.
  • the substituent of Ar is selected from an alkyl group, an alkoxy group, an alkyl group, a nitro group, a hydroxyl group, an amino group, an aryl group, an arylalkyl group, or an aryloxy group.
  • the present application relates to a method of treating and preventing a neuroinflammatory disease or condition mediated by IL- ⁇ , comprising administering to a subject in need thereof a therapeutically effective amount of a compound of formula I or a pharmaceutically acceptable form thereof Salt:
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane base;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl group; and Ar is selected from a substituted or unsubstituted heteroaryl group, provided that the heteroaryl group is not hydrazine.
  • the substituent of R ⁇ 1> is selected from aryl, arylalkyl, alkyl, alkoxy, alkyl, hydrazino, hydroxy, amino or cyano.
  • the substituent of Ar is selected from alkyl, alkoxy, alkyl, halogen, nitro, hydroxy, amino, aryl, arylalkyl or aryloxy.
  • the neuroinflammatory disease or condition is selected from the group consisting of Alzheimer's disease (Alzheimer's disease), Parkinson's disease, amyotrophic lateral sclerosis, autoimmune disease, scorpion venom Disease, stroke, traumatic brain injury, spinal muscular atrophy, multiple sclerosis, epilepsy and herbal pain.
  • a compound of Formula I described herein or a pharmaceutical composition comprising a compound of Formula I can be administered by the following modes of administration: Oral, Parenteral, Intraperitoneal, Intravenous, Transdermal, Tongue Lower, intramuscular, rectal, buccal, intranasal, liposome, etc.
  • the present application relates to a method of treating and preventing Alzheimer's disease (Alzheimer's disease) comprising administering to a subject in need of such a method a therapeutically effective amount of a compound of formula I and a medicament thereof
  • R 1 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl or substituted or unsubstituted heterocycloalkane base;
  • R 2 , R 3 , R 4 , R 5 are each selected from the group consisting of hydrogen, hydroxy, amino, nitro, cyano, halogen, alkyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl Or a heterocycloalkyl group; and Ar is selected from a substituted or unsubstituted heteroaryl group.
  • the substituent of R ⁇ 1> is selected from aryl, arylalkyl, alkyl, alkoxy, alkyl, hydrazino, hydroxy, amino or cyano.
  • the substituent of Ar is selected from alkyl, alkoxy, alkyl, halogen, nitro, hydroxy, amino, aryl, arylalkyl or aryloxy.
  • the starting material 3-chloro-4-mercapto-6-phenylpyridazine used in the specific examples of the present application is prepared according to the method disclosed in the international application WO 2007/127375, according to the international The method of the invention is described in the application of WO 2008/023357, the entire contents of which are incorporated herein by reference.
  • Other starting materials, reaction reagents and the like used are commercially available products unless otherwise specified.
  • Example 2 The compound 2 prepared in Example 1 was added to 20 mL of 8N HCl solution, and heated under reflux for 4 hours. After cooling, it was neutralized with saturated sodium hydrogencarbonate to make a sodium salt, and ethyl acetate was extracted twice. adjusted to pH 2 with dilute hydrochloric acid, and extracted three times with ethyl acetate, dried over anhydrous sodium sulfate, and concentrated to give 0.59g of compound 3 as a pale yellow solid, yield 55%, MS: 213 ⁇ 0 ( ⁇ - ⁇ +).
  • Example 4 Starting from 1-(2-pyridyl)piperazine and 3-carboxy-4-indolyl-6-phenylpyridazine, the compound of Example 4 was synthesized according to the method of the compound of Example 1, to obtain a compound 6 as a pale yellow solid. The yield was 64%.
  • Example 1 Using Compound 10 and 4-(2-pyridyl)piperazine as starting materials, the compound of Example 1 was synthesized according to the procedure of Compound 4 to give a pale yellow solid (yield: 82%).
  • Example 1 Using 4-(pyrimidin-2-yl)piperazine and carbazole-3-indole as a starting material, the compound of Example 1 was synthesized by the method of the synthesis of compound 4 to give compound 17, white solid, yield 40%.
  • Example 4 4-(2-pyrimidinyl)piperazine and 5-isopropylpyrazole-3-furic acid were used as starting materials, and the compound of Example 4 was synthesized according to the method of the synthesis of the compound of Example 1 to give a compound 22 as a white solid, yield 29% .
  • Example 4 Starting from 1-mercaptopiperazine and 3-carboxy-4-mercapto-6-phenylpyridazine as a starting material, the compound of Example 4 was synthesized according to the method of the compound of Example 1, to obtain compound 26, pale yellow solid, yield 75% .
  • Example 4 Using Compound 10 and 4-mercaptopiperazinyl as starting materials, the compound of Example 4 was synthesized according to the procedure of Compound 4 to give a pale yellow solid (yield: 35%).
  • the activity assay of the compounds of the present application is determined by methods known in the art to specifically inhibit the efficiency of secretion of IL- ⁇ by microglia to assess its potential application value.
  • microglia are the earliest reactions after the central nervous system is damaged.
  • Cell type a variety of pathological conditions of the central nervous system can activate microglia, such as trauma, stroke, inflammatory response and neurodegenerative diseases.
  • Activated microglia participate in the pathological processes of various neurological diseases. For example, activated microglia can cause motor neuron damage by releasing free radicals.
  • microglia can induce the expression of amyloid precursor proteins by neurons and astrocytes by releasing cytokines (APP), a large amount of deposition of amyloid precursor protein is an important cause of AD.
  • APP cytokines
  • neuronal apoptosis is closely related to the activation of microglia.
  • ⁇ -amyloid-activated microglia-mediated immune inflammatory response can cause AD-specific apoptosis and cognitive dysfunction.
  • Inflammatory factors such as TNF- ⁇ released by activated microglia can damage oligodendrocytes and myelin, causing multiple sclerosis (MS).
  • microglia plays a very important role in the generation and maintenance of neuropathic pain.
  • Microglia were activated under pain stimulation, Fu Kaiyuan found, [Fu Kaiyuan, peripheral inflammatory pain stimulation induces proliferation of microglia in the central nervous system. Chinese Journal of Neurology and Neurology 2001, 8: 179-183 ⁇ ], activation of central microglia after stimulation with peripheral inflammatory pain-killing agent, may be one of the causes of long-term persistence of chronic pain. Inhibition of microglia function by drugs (such as fluorocitrate) can produce significant analgesic effects, suggesting that glial cell activation is highly relevant for the generation and maintenance of neuropathic pain.
  • drugs such as fluorocitrate
  • Microglia are central nervous system macrophages, which play an important role in the initiation, development and prognosis of immune inflammatory response in the brain. Astrocyte degeneration and necrosis caused by microglial activation may be an important physiological pathway for epilepsy.
  • the murine microglial cell line BV 2 and the glioma cell line C6 were cultured separately.
  • Cells from passage 6 to passage 15 were cultured in DMEM medium containing 10% FBS for use as candidates Compound activity screening.
  • the cultured cells were seeded at 50,000 cells/well in a 24-well cell culture plate, and after 1 day of culture, the cells were replaced with a low serum medium (addition of 2% FBS) for 16 hours.
  • Adding 300 ng/ml (for inducing BV 2 cells) or 1 mg/mL (for inducing C6 cells) to the culture medium LPS (Salmonella typhimutium) induces cultured cells to secrete IL-ip.
  • the sample to be tested (DMSO ⁇ 0.1%) was added at a final concentration of 200 ⁇ , 20 ⁇ , 2 ⁇ ⁇ and 200 ⁇ ;; 0.1% DMSO was added as a solvent control group to the blank.
  • Inhibition rate (%) ([IL-1] LPS «guide-[LL- ⁇ ] drug treatment) /[LL-ip] L ps induces xl00%.

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Description

酰胺类化合物 领域
本申请涉及有机化学与药物化学领域, 更具体地, 本申请涉及酰 胺类化合物。
3- 神经炎性疾病主要是神经胶质(小胶质细胞和星型胶质细胞)异常 高度或慢性激活所引起的过程。 这种过度活跃状态的神经胶质导致更 高水平的炎症和氧化应激反应的分子, 从而导致神经元损伤或死亡。 神经元损伤或死亡也可以诱导神经胶质活化, 促进神经炎症局部有害 的周期传播。
Figure imgf000003_0001
细胞的活化可以有效抑制神经炎症反应。 神经炎性疾病包括老年痴呆 症(阿尔茨海默氏病)、 帕金森氏病、 肌肉萎缩性侧索硬化症、 自体免 疫疾病、 朊毒体病、 中风、 外伤性脑损伤、 脊髓性肌萎缩症、 多发性 硬化、 癫痫、 神经性疼痛等。
老年痴呆症也称作阿尔茨海默氏病 (Alzheimer's disease, AD) , 其 发病率在多种神经变性疾病中居首位, 是一种以进行性认知障碍和记 忆能力损害为主的中枢神经系统变性疾病。 该疾病的临床表现为近期 记忆功能障碍, 随后为持续性智能减退、 判断推理能力丧失、 失语、 运动障碍等。其病理特征为大量的老年斑 (senile plaques, SPs)和神经纤 维缠结 (neurofibrilary tangles, NFTs)。
哌嗪化合物具有选择抑制胶质激活通路的作用 (参见
WO03/018563)。 中国专利 CN101754762 中公开了用于治疗神经炎性 疾病的哒嗪化合物。 Wenhui Hu等人报道的文献中(参考 Bioorganic &
Figure imgf000003_0002
II化合物的抗
Figure imgf000003_0003
(minozac)
Figure imgf000004_0001
(式 n ) 概述
•方面, 本申请涉及通式 I化合物及其药物可接受的盐:
Figure imgf000004_0002
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及 Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚。 另一方面, 本申请涉及通式 I化合物及其药物可接受的盐:
R
Figure imgf000004_0003
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基, 取代基选自芳基、 芳基烷基、 烷基、 烷氧基、 代烷基、 卤 素、 羟基、 氨基或氰基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及
Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚, 取 代基选自烷基、 烷氧基、 代烷基、 素、 硝基、 羟基、 氨基、 芳基、 芳基烷基或芳氧基。
又一方面, 本申请涉及制备通式 I化合物及其药物可接受的盐的 方法, 其包括如下反应:
Figure imgf000005_0001
通式 A 通式 B 通式 I
其中 R R2、 R3、 R4、 R5、 Ar如上述定义, R6为氢或烷基。 再一方面, 本申请涉及药物组合物, 其包含治疗有效量的通式 I 化合物或其药物可接受的盐, 以及其药物可接受的载体:
Figure imgf000005_0002
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及 Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚。 又一方面, 本申请涉及抑制小胶质细胞分泌 IL-Ι β的方法, 其包 括将治疗有效量的通式 I化合物或其药物可接受的盐与小胶质细胞接 触:
Figure imgf000006_0001
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及 Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚。 再一方面, 本申请涉及治疗和预防由 IL-Ιβ介导的神经炎症疾病 或疾病状态的方法, 其包括向需要所述方法的个体给予治疗有效量的 通式 I化合物或
Figure imgf000006_0002
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及
Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚。 其它方面, 本申请涉及治疗和预防老年痴呆症(阿尔茨海默氏病) 的方法, 其包括向需要所述方法的个体给予治疗有效量的通式 I化合 物或其药物可接受的盐:
Figure imgf000007_0001
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及 Ar选自取代或未取代的杂芳基。 详述
除非本申请中另外要求, 在整个说明书和其后的权利要求书中, 词语 "包括 (comprise)" 及其英文变体例如 "包括 (comprises)" 和 "包 括 (comprising)" 应解释为开放式的、 含括式的意义, 即 "包括但不限 于,, 。
在整个本说明书中提到的 "一实施方案" 或 "实施方案" 或 "在 另一实施方案中" 或 "在某些实施方案中" 意指在至少一实施方案中 包括与该实施方案所述的相关的具体要素、 结构或特征。 因此, 在整 个说明书中不同位置出现的短语 "在一实施方案中" 或 "在实施方案 中" 或 "在另一实施方案中" 或 "在某些实施方案中" 不必全部指同 一实施方案。 此外, 除非相互抵触, 所提及的构成某一实施方案的具 体要素、 结构或特征可以任何适当的方式在一个或多个实施方案中结 合。
应当理解, 在本申请说明书和附加的权利要求书中用到的单数形 式的冠词 "一" (对应于英文 "a"、 "an"和" the")包括复数的对象, 除非 文中另外明确地规定。 因此, 例如提到的包括 "药物可接受的载体" 包括一种药物可接受的载体, 或两种或多种药物可接受的载体。 还应 当理解, 术语 "或" 通常以其包括 "和 /或" 的含义而使用, 除非文中 另外明确地规定。 定义
由在所示化学基团中找到的碳原子总数的筒化符号 (如 C4)在前面 标示出本文中命名的某些化学基团。 例如, c7-c12烷基描述具有总数 为 7至 12个碳原子的如下定义的烷基,并且 C4-C12环烃基烷基描述具 有总数为 4至 12个碳原子的如下定义的环烃基烷基。筒化符号中碳原 子总数并不包含可能存在于所述基团的取代基中的碳。
因此, 除非另有相反的说明, 否则说明书及所附权利要求中所用 的下列术语具有以下的意思:
术语 "卤素" 是指氟、 氯、 溴或碘。
术语 "烷基" 指由碳原子和氢原子组成的直链或支链的饱和脂肪 烃基团, 其通过单键与分子的其余部分链接。 所述烷基含有 1到 6个 碳原子, 烷基的具体实例包括但不限于曱基、 乙基、 丙基、 异丙基、 正丁基、 异丁基或叔丁基、 戊基、 2-曱基丁基、 新戊基、 正己基等。 烷基可以是取代的或未取代的。
术语 "卤代烷基"表示被一个或多个 "卤素"原子取代的 "烷基", 包括一 代烷基、 二 代烷基、 三 代烷基、 全 代烷基等, 代烷 基的具体实例包括但不限于氯曱基、 二氯曱基、 二氟曱基、 三氟曱基、 全氟乙基或 2,2,2-三氟乙基等。
术语 "烷氧基" 是指 -0-烷基基团, 烷氧基的具体实例包括但不限 于曱氧基、 乙氧基、 丙氧基、 异丙氧基、 正丁氧基、 异丁氧基、 叔丁 氧基、 正戊氧基、 2-曱基丁氧基、 新戊氧基、 正己氧基等。
术语 "氨基" 是指 -NH2基团、 -NH (烷基)基团和 -N (烷基 )2。 氨基 的具体实例包括但不限于 -NH2、 -NHCH3、 -N(CH3)2、 -NHCM烷基、
-N(C1 -3烷基 )2等。
术语 "芳基" 是指具有完全共轭的 π电子体系的全碳单环或稠合 多环的芳香环基团。 在某些实施方案中, 芳基具有 6- 14个碳原子。 。 在某些实施方案中, 芳基具有 6- 10个碳原子。 在某些实施方案中, 芳 基具有 6个碳原子。 芳基的具体实例包括但不限于苯基、 萘基、 蒽基 等。
"C6-C1Q芳基" 指含有六至十个碳原子的上述定义的芳基基团。 术语 "芳基烷基" 是指被如上文定义的芳基所取代的烷基。 芳基 烷基的具体实例包括但不限于 -CH2-苯基、 -(CH2)2-苯基、 -(CH2)3 -苯基、 -CH2-CH(CH3)-苯基、 -(CH2)4-苯基、 -CH2-CH(CH3)-CH2-苯基、 -CH2-CH2-CH(CH3)-苯基等。
"C7-C20芳基烷基" 指含有七至二十个碳原子的上述定义的芳基 烷基基团。
术语 "杂芳基" 是指有 5- 10个原子的单环或双环的芳香环基团, 其中至少含有 1个选自 N、 0或 S的杂原子, 其余的原子是 C , 其具 有完全共轭的 π电子体系。 杂芳基的具体实例包括但不限于哒嗪、 喹 峻啉、 吡洛、 PJ分、 吲峻、 吡峻、 p奎啉、 吡11定、 p夫喃、 咪峻、 吡13秦、 嘧啶、 噻唑、 异喹啉、 苯并噻唑或二氮杂萘等。 杂芳基可以是取代的 或未取代的。
术语 "环烷基" 是指含有 3-10个碳原子的饱和环烷烃。 环烷基的 具体实例包括但不限于环丙基、 环丁基、 环戊基、 环己基、 环庚基、 金刚烷基等。 环烷基可以是取代的或未取代的。
术语 "杂环烷基" 是指有 3-10个原子的饱和环烷烃, 其中至少含 有 1个选自 N、 0或 S的杂原子, 其余的原子是 C。 在某些实施方案 中, 杂环烷基具有 3-6个原子。 杂环烷基的具体实例包括但不限于二 氧环戊基。
术语 "取代" 是指某个基团上的一或多个氢原子独立地被相同或 不同的取代基所取代。 常见的示例性取代基包括但不限于羟基、氨基、 硝基、 氰基、 素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳 基、 杂环烷基等。
术语 "药物可接受的载体" 包括但不限于已经被美国食品与药品 管理局认可的而可用于人类或动物的任何佐剂、 载体、 赋形剂、 助流 剂、 甜味剂、 稀释剂、 防腐剂、 染料 /着色剂、 香味增强剂、 表面活性 剂、 润湿剂、 分散剂、 助悬剂、 稳定剂、 等渗压剂、 溶剂或乳化剂等 对组成药物组合物无副作用的各种形式的载体。
"药物可接受的盐" 包括 "药物可接受的酸加成盐" 和 "药物可 接受的碱加成盐" 。
"药物可接受的酸加成盐" 指保持游离碱的生物学有效性和性质 的那些盐, 所述酸加成盐是在生物学或其它方面合适的并且是使用无 机酸或有机酸来形成的, 所述无机酸例如但不限于盐酸、 氢溴酸、 石克 酸、 硝酸、 磷酸等, 所述有机酸例如但不限于乙酸、 2,2-二氯乙酸、 己二酸、 褐藻酸、 抗坏血酸、 天冬氨酸、 苯蹟酸、 苯羧酸、 4-乙酰胺 基苯羧酸、 樟脑酸、 樟脑 -10-磺酸、 癸酸、 己酸、 辛酸、 碳酸、 肉桂 酸、 柠檬酸、 环己烷基氨基橫酸、 十二烷基硫酸、 乙烷 -1,2-二橫酸、 乙烷横酸、 2-羟基乙烷横酸、 曱酸、 富马酸、 粘酸、 龙胆酸、 葡庚糖 酸、 葡糖酸、 葡糖醛酸、 谷氨酸、 戊二酸、 2-氧代-戊二酸、 甘油磷酸、 乙醇酸、 马尿酸、 异丁酸、 乳酸、 乳糖醛酸、 月桂酸、 马来酸、 苹果 酸、 丙二酸、 扁桃酸、 曱烷黄酸、 黏酸、 萘 -1,5-二磺酸、 萘 -2-磺酸、 1-羟基 -2-萘曱酸、 烟酸、 油酸、 乳清酸、 草酸、 棕榈酸、 双羟蔡酸、 丙酸、 焦谷氨酸、 丙酮酸、 水杨酸、 4-氨基水杨酸、 癸二酸、 硬脂酸、 丁二酸、 酒石酸、 石克氰酸、 对曱苯蹟酸、 三氟乙酸、 十一碳烯酸等。 "药物可接受的碱加成盐 " 指保持游离酸的生物学有效性和性质 的那些盐, 所述碱加成盐是在生物学或其它方面合适的。 向游离酸中 加入无机碱或有机碱来制备这些盐。 由无机碱衍生的盐包括但不限于 钠、 钾、 锂、 铵、 钙、 镁、 铁、 辞、 铜、 锰、 铝盐等。 优选的无机盐 为铵、 钠、 钾、 钙及镁盐。 由有机碱衍生的盐包括但不限于伯、 仲和 叔胺的盐、 包括天然存在的取代的胺在内的取代的胺、 环胺和碱性离 子交换树脂的盐, 例如氨、 异丙胺、 三曱胺、 二乙胺、 三乙胺、 三丙 胺、 二乙醇胺、 乙醇胺、 二曱氨基乙醇、 2-二曱氨基乙醇、 2-二乙氨 基乙醇、 二环己胺、 赖氨酸、 精氨酸、 组氨酸、 咖啡因、 普鲁卡因、 海巴明、 胆碱、 甜菜碱、 苄胺、 苯乙二胺、 乙二胺、 葡萄糖胺、 曱基 葡糖胺、 可可碱、 三乙醇胺、 氨基丁三醇、 嘌呤、 哌嗪、 哌啶、 N-乙 基哌啶、 聚胺树脂等。 特别优选的有机碱是异丙胺、 二乙胺、 乙醇胺、 三曱胺、 二环己胺、 胆碱和咖啡因。
术语 "药物组合物" 指本申请化合物与通常被本领域所接受的将 生物活性化合物输送至诸如人类等哺乳动物的介质所形成的制剂。 这 样的介质包括所有药物可接受的载体。
术语 "治疗有效量" 指当对哺乳动物, 优选对人类给药时, 本申 请化合物足以有效治疗(如下定义)哺乳动物的,优选人类的 IL-Ιβ介导 的疾病或疾病状态的量。 根据化合物、 疾病状态及其严重性、 以及待 治疗哺乳动物的年龄, 构成 "治疗有效量" 的本申请化合物的量将会 不同, 但是本领域的技术人员根据其自身的知识以及本公开可以依惯 例确定本申请化合物的量。
本文所用的 "进行治疗" 或 "治疗" 涵盖患有相关疾病或病症的 哺乳动物, 优选人类中治疗相关的疾病或疾病状态, 并且包括:
(i) 预防疾病或疾病状态在哺乳动物中发生,尤其是当该哺乳动物 易感于所述疾病状态, 但尚未被诊断出患有这种疾病状态时;
(ii) 抑制疾病或疾病状态, 即阻止其发生; 或者
(iii) 緩解疾病或疾病状态, 即使疾病或疾病状态消退。
正如本文所用的那样, 术语 "疾病" 和 "疾病状态" 可以相互交 换使用, 或者可以是不同的, 因为特殊的疾病或疾病状态可能并没有 已知的致病因子(因此不能用病因学解释), 因此其不被公认为是疾病, 而是被认为是不期望的疾病状态或病症, 其中临床医生已经鉴定出或 多或少的特定系列的症状。 具体实施方案
一方面, 本申请涉及通式 I化合物及其药物可接受的盐:
Figure imgf000011_0001
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及
Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚。 在某些实施方案中, R1的取代基选自芳基、 芳基烷基、 烷基、 烷 氧基、 代烷基、 素、 羟基、 氨基或氰基。
在某些实施方案中, Ar的取代基选自烷基、 烷氧基、 代烷基、 卤素、 硝基、 羟基、 氨基、 芳基、 芳基烷基或芳氧基。
另一方面, 药物可接受的盐:
Figure imgf000011_0002
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基; 取代基选自芳基、 芳基烷基、 烷基、 烷氧基、 代烷基、 卤 素、 羟基、 氨基或氰基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及
Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚, 取 代基选自烷基、 烷氧基、 代烷基、 素、 硝基、 羟基、 氨基、 芳基、 芳基烷基或芳氧基。
在某些实施方案中, 烷基选自 C C6烷基。
在某些实施方案中, 环烷基选自 C 。环烷基。 在某些实施方案中, 芳基选自 c6-c1()芳基。
在某些实施方案中, 杂芳基选自五至十个原子的杂芳基。
在某些实施方案中, 杂环烷基选自三至十个原子的杂环烷基、 三 至八个原子的杂环烷基或三至六个原子的杂环烷基。
在某些实施方案中, R1选自取代或未取代的 C C6烷基、 取代或 未取代的 C 。环烷基、 取代或未取代的 QT 。芳基或者取代或未取 代的五至十个原子的杂芳基, 其中取代基选自芳基、 芳基烷基、 烷基、 烷氧基、 代烷基、 素、 羟基、 氨基或氰基。
在某些实施方案中, R1选自取代或未取代的 CrC6烷基、 取代或 未取代的 c3-c1()环烷基、 取代或未取代的苯基、 取代或未取代的嘧啶 基、 取代或未取代的吡啶基或者取代或未取代的吡嗪基, 其中取代基 选自芳基、 芳基烷基、 烷基、 烷氧基、 代烷基、 素、 羟基、 氨基 或氰基。
在某些实施方案中, R1选自取代或未取代的 C C6烷基、 取代或 未取代的 C3-C1Q环烷基、 取代或未取代的苯基、 取代或未取代的嘧啶 基、 取代或未取代的吡啶基或者取代或未取代的吡嗪基, 其中取代基 选自曱基、 乙基、 氟、 氯、 溴、 羟基、 曱氧基、 三氟曱基。
在某些实施方案中, R1选自苯基、 4-氟苯基、 2,4-二氟苯基、 2- 氟苯基、 4-氯苯基、 3-氯苯基、 4-溴苯基、 4-羟基苯基、 4-曱基苯基、 2-曱氧基苯基、 3-曱氧基苯基、 4-曱氧基苯基、 2-乙基 -4-氟苯基、 3- 三氟曱基苯基、 2,3-二氯苯基、 2-氯 -6-氟苯基、 3,4-二曱基苯基、 3,4- 二曱氧基苯基、 嘧啶 -2-基、 5-氟嘧啶 -2-基、 5-溴嘧啶 -2-基、 吡啶 -2- 基、 吡啶—4-基、 5-曱基吡啶 -2-基、 3-三氟曱基吡啶 -2-基、 5-三氟曱基 吡啶 -2-基或 3-氯 -5-三氟曱基吡啶 -2-基、 吡嗪 -2-基、 曱基、 异丙基或 环己基。
在某些实施方案中, R1选自 4-氟苯基、 2,4-二氟苯基、 嘧啶 -2-基、 吡啶 -2-基、 5-氟嘧啶 -2-基、 吡嗪 -2-基、 吡啶 -4-基、 曱基、 异丙基或环 己基。
在某些实施方案中, R2、 R3、 R4、 R5分别选自氢、 烷基、 烷氧基、 苯基或苯基烷基。
在某些实施方案中, R2、 R3、 R4、 R5分别选自氢。
在某些实施方案中, Ar选自取代或未取代的哒嗪基、 取代或未取 代的喹唑啉基、 取代或未取代的吡咯基、 取代或未取代的噻吩基、 取 代或未取代的吲唑基或者取代或未取代的吡唑基。
在某些实施方案中, Ar选自取代或未取代的哒嗪基, 其中取代基 选自烷基、 烷氧基、 代烷基、 素、 氨基和芳基。 在某些实施方案中, Ar选自取代或未取代的哒嗪基, 取代基选自 曱基、 苯基、 曱氧基、 三氟曱基、 氨基或氯。
在某些实施方案中, Ar 选自 4-曱基 -6-苯基哒嗪 -3-基、 6-苯基哒 嗪 -3-基、 6-曱基哒嗪 -3-基、 6-曱氧基哒嗪 -3-基、 6-三氟曱基哒嗪 -3-基、 6-氨基哒嗪 -3-基、 6-氯哒嗪 -3-基、 哒嗪 -4-基、 2-苯基喹唑啉 -4-基、 喹 唑啉 -4-基、 2-三氟曱基喹唑啉 -4-基、 7-曱氧基喹唑啉 -4-基、 吡咯 -2- 基、 吡咯 -3-基、 4-曱基吡咯 -2-基、 1-苯基吡咯 -3-基、 2,4-二曱基吡咯 -3-基、 3,5-二曱基吡咯 -2-基、 噻吩 -3-基、 噻吩 -2-基、 5-硝基噻吩 -2- 基、 5-曱基噻吩 -2-基、 4-曱基噻吩 -2-基、 4-氯噻吩 -2-基、 3-溴噻喻 -2- 基、 3-氨基噻吩 -2-基、 3-氨基 -4-曱基噻吩 -2-基、 4,5-二曱基噻吩 -2-基、 吲唑 -3-基、 5-氟吲唑 -3-基、 5-氯吲唑 -3-基、 4,7-二氟吲唑 -3-基、 6-曱 氧基吲唑 -3-基、 4-曱氧基吲唑 -3-基、 5-曱氧基吲唑 -3-基、 1 -曱基吲唑 -3-基、 5-曱基吲唑 -3-基、 7-氯吲唑 -3-基、 5-硝基吲唑 -3-基、 5,6-二氯 吲唑 -3-基、 吡唑 -3-基、 5-异丙基吡唑 -3-基、 3-氨基吡唑 -4-基、 1-曱基 -4-氯吡唑 -3-基、 5-硝基吡唑 -3-基、 1-曱基吡唑 -3-基或 1-曱基 -5-氨基 吡 P坐—4-基。
在某些实施方案中, Ar选自 4-曱基 -6-苯基哒嗪 -3-基、 2-苯基喹唑 啉—4-基、 吡咯 -2-基、 噻吩 -2-基、 吲唑 -3-基、 5-氟吲唑 -3-基、 4,7-二氟 吲唑 -3-基、 5-氯吲唑 -3-基、 5-异丙基吡唑 -3-基。
在某些实施方式中, R1选自氢、 取代或未取代的烷基、 取代或未 取代的环烷基、 取代或未取代的芳基或者取代或未取代的杂芳基, 其 中取代基选自芳基、 芳基烷基、 烷基、 烷氧基、 代烷基、 素、 羟 基、 氨基、 氰基; R2、 R3、 R4、 R5分别选自氢, 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基、 杂 环基; Ar选自被取代或未被取代的哒嗪基、取代或未取代的喹唑啉基、 取代或未取代的吡咯基、 取代或未取代的噻吩基、 取代或未取代的吲 唑基或者取代或未取代的吡唑基, 其中取代基选自烷基、 烷氧基、 卤 代烷基、 素、 硝基、 羟基、 氨基、 芳基、 芳基烷基或芳氧基。
在某些实施方案中, R1选自取代或未取代的烷基、 取代或未取代 的环烷基、 取代或未取代的芳基或者取代或未取代的杂芳基, 其中取 代基选自芳基、 芳基烷基、 烷基、 烷氧基、 氟烷基、 素、 羟基、 氨 基或氰基; R2、 R3、 R4、 R5分别选自氢; Ar选自取代或未取代的哒嗪 基、 取代或未取代的吲哚基、 取代或未取代的喹唑啉基、 取代或未取 代的吡咯基、 取代或未取代的噻吩基、 取代或未取代的吲唑基或者取 代或未取代的吡唑基, 其中取代基选自烷基、 烷氧基、 代烷基、 卤 素、 硝基、 羟基、 氨基、 芳基、 芳基烷基或芳氧基。 在某些实施方案中, R1选自取代或未取代的烷基、 取代或未取代 的环烷基、 取代或未取代的苯基、 取代或未取代的嘧啶基、 取代或未 取代的吡啶基或者取代或未取代的吡嗪基, 其中取代基选自芳基、 芳 基烷基、 烷基、 烷氧基、 代烷基、 素、 羟基、 氨基或氰基; R2、 R3、 R4、 R5选自氢; Ar选自取代或未取代的哒嗪基, 其中取代基选自 烷基、 烷氧基、 代烷基、 素、 氨基或芳基。
在某些实施方案中, R1选自取代或未取代的烷基、 取代或未取代 的环烷基、 取代或未取代的苯基、 取代或未取代的嘧啶基、 取代或未 取代的吡啶基或者取代或未取代的吡嗪基, 其中取代基选自曱基、 乙 基、 氟、 氯、 溴、 羟基、 曱氧基或三氟曱基; R2、 R3、 R R5选自氢; Ar选自取代或未取代的哒嗪基, 其中取代基选自曱基、苯基、 曱氧基、 三氟曱基、 氨基或氯。
在某些实施方案中, 通式 I化合物或其药物可接受的盐选自下列 化合物或其药物可接受的盐:
(4-(4-氟苯基)哌嗪基 )(4-甲基 -6-苯基哒嗪)甲酮;
(4—(2,4—二氟苯基)哌嗪基 )(4—曱基—6-苯基哒嗪)曱酮;
(2-嘧啶哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮;
(2-吡啶哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮;
(4—(4—氟苯基)哌嗪基 )(2-苯基喹唑啉)曱酮;
(4-(5-氟嘧啶 -2-基)哌嗪基 )(2-苯基喹唑啉)曱酮;
(4— (嘧啶―2—基)哌嗪基 )(2—苯基喹唑啉)甲酮;
(4-(2-吡啶基)哌嗪基 )(2-苯基喹唑啉)曱酮;
(4—(4—氟苯基)哌嗪基) (吡咯—2_基)曱酮;
(4—(4—氟苯基)哌嗪基) (噻吩—2_基)曱酮;
(4- (嘧啶 -2-基)哌嗪基) (吲唑 -3-基)曱酮;
(4—(4—氟苯基)哌嗪基) (吲唑 -3-基)曱酮;
(4-(4-氟苯基)哌嗪基 )(5-氟吲唑 -3-基)曱酮;
(4—(4—氟苯基)哌嗪基 )(4,7-二氟吲唑 -3-基)曱酮;
(4—(4—氟苯基)哌嗪基 )(5-氯吲唑 -3-基)曱酮;
(4-(2-嘧啶基)哌嗪基 )(5-异丙基吡唑 -3-基)曱酮;
(4-(4-氟苯基)哌嗪基 )(5-异丙基吡唑 -3-基)曱酮;
(2-(4-氟嘧啶)哌嗪基 )(4-甲基 -6-苯基哒嗪)甲酮;
(2-吡嗪哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮;
(N-曱基哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮;
(N-异丙基哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮;
(N-环己烷哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮; (4—(4—吡啶基)哌嗪基 )(2—苯基喹唑啉)曱酮;
(4-(2-吡嗪基)哌嗪基 )(2-苯基喹唑啉)曱酮;
(4-曱基哌嗪基) (2-苯基喹唑啉)曱酮;
(4-异丙基哌嗪基 )(2-苯基喹唑啉)曱酮; 或者
(环己烷基哌嗪基 )(2-苯基喹唑啉)曱酮。
又一方面, 本申请涉及制备通式 I化合物及其
Figure imgf000015_0001
通式 A 通式 B 通式 I
其中 R1选自氢、 取代或未取代的烷基、 取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基;
Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚; 以 及
R6为氢或烷基。
在某些实施方案中, R1的取代基选自芳基、 芳基烷基、 烷基、 烷 氧基、 代烷基、 素、 羟基、 氨基或氰基。
在某些实施方案中, Ar的取代基选自烷基、 烷氧基、 代烷基、 素、 硝基、 羟基、 氨基、 芳基、 芳基烷基或芳氧基。
在某些实施方案中, 所述方案包括: 在有机溶剂中, 在缩合剂的 存在下, 通式 A和通式 B化合物反应得到通式 I化合物及其盐。
缩合剂选自二环己基碳二亚胺 (DCC)、 二异丙基碳二亚胺 (DIC)、 乙基二曱基氨基丙基碳二亚胺 (EDC)或乙基二曱基氨基丙基碳二亚胺 盐酸盐 (EDCI)。 有机溶剂选自二氯曱烷或四氢呋喃。
在某些实施方案中, 将通式 A和通式 B的化合物混合, 加入二氯 曱烷或四氢呋喃, 再加入缩合剂, 二氯曱烷萃取, 所得有机相经无水 硫酸钠干燥后, 浓缩、 柱层析得到式 I所示的化合物。
在某些实施方案中,当 Ar为取代或未取代的哒嗪或者取代或未取 代的喹唑啉, R6为氢时,
Figure imgf000016_0001
以采用下列方法合成得到:
Ar— Hal CuCN > Ar— CN conc.HCI > Ar— COOH 其中, Hal代表卤素, 例如氯、 溴、 碘等, 原料 Ar—— Hal可以从 市场上买到, 或者根据国际申请 WO 2008/023357或 WO 2007/127375 中公开的方法制备。
取代或未取代的哒嗪或者取代或未取代的喹唑啉 代物( A「一 Hal ) 和氰化亚铜或者氰化钾混合, 进行反应。
在某些实施方案中加入吡啶或者 Ν,Ν-二曱基曱酰胺, 混合物在 60。- 160。C反应 2-48小时后, 过滤, 加入稀盐酸并用乙酸乙酯萃取。 有机相经无水硫酸钠干燥,浓缩后所得到的粗品于 6-10M 盐酸中加热 回流 3-8 小时, 再用饱和碳酸氢钠溶液中和, 乙酸乙酯萃取。 水相经 稀盐酸调 pH值至 2后, 用乙酸乙酯萃取, 无水硫酸钠干燥并浓缩得 到产物。
在某些实施方案中, 取代或未取代的哒嗪或者取代或未取代的喹 唑啉卤代物与氰化亚铜的摩尔比为 1 : 1.0-2.0,优选 1 : 1.8,更优选 1 : 1.5; 反应时间为 2-48 小时, 优选 24 小时, 更优选 2 小时; 反应温度为 60-160°C, 优选 130°C, 更优选 80°C。
再一方面, 本申请涉及药物组合物, 其包含治疗有效量的通式 I
Figure imgf000016_0002
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及 Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚。 在某些实施方案中, R1的取代基选自芳基、 芳基烷基、 烷基、 烷 氧基、 代烷基、 素、 羟基、 氨基或氰基。 在某些实施方案中, Ar的取代基选自烷基、 烷氧基、 代烷基、 卤素、 硝基、 羟基、 氨基、 芳基、 芳基烷基或芳氧基。
在某些实施方案中, 本申请的药物组合物可以是液体、 半液体或 固体形式。
能够用于本申请药物组合物中的药物可接受的载体的实例包括但 不限于已经被美国食品与药品管理局认可的而可用于人类或家禽的任 何佐剂、 载体、 赋形剂、 助流剂、 甜味剂、 稀释剂、 防腐剂、 染料 / 着色剂、 香味增强剂、 表面活性剂、 润湿剂、 分散剂、 助悬剂、 稳定 剂、 等渗压剂、 溶剂或乳化剂。
在某些实施方案中, 本申请的药物组合物被制备为胃肠外、 经皮、 粘膜、 鼻、 口颊、 舌下或经口使用的片剂、 溶液剂、 颗粒剂、 贴剂、 膏剂、 胶嚢剂、 气雾剂或栓剂。
口服药物组合物可以是固体、 凝胶或液体。 固体制剂的实例包括 但不限于片剂、 胶嚢剂、 颗粒剂和散装粉剂。 这些制剂可以选择地含 有粘合剂、 稀释剂、 崩解剂、 润滑剂、 助流剂、 甜味剂和矫味剂等。 粘合剂的实例包括但不限于微晶纤维素、 葡萄糖溶液、 阿拉伯胶浆、 明胶溶液、 蔗糖和淀粉糊; 润滑剂的实例包括但不限于滑石、 淀粉、 硬脂酸镁、 硬脂酸钙、 硬脂酸; 稀释剂的实例包括但不限于乳糖、 蔗 糖、 淀粉、 甘露糖醇、 磷酸二钙; 助流剂的实例包括但不限于二氧化 硅; 崩解剂的实例包括但不限于交联羧曱基纤维素钠、 淀粉羟乙酸钠、 藻酸、 玉米淀粉、 马铃薯淀粉、 曱基纤维素、 琼脂和羧曱基纤维素。
以肠胃外给予本申请的药物组合物, 一般以注射为主, 包括皮下、 肌内或静脉内注射。 注射剂可以被制成任何常规形式, 如液体溶液或 悬液、 适合于在注射之前溶解或悬浮在液体中的固体形式或者乳剂。 可用于本申请注射剂的药学上可接收的载体的实例包括但不限于水性 载体、 非水性载体、 抗微生物剂、 等渗剂、 緩沖剂、 抗氧剂、 悬浮与 分散剂、 乳化剂、 螯合剂和其它药物可接受的物质。 水性载体的实例 包括氯化钠注射液、 林格式注射液、 等渗葡萄糖注射液、 无菌水注射 液、 葡萄糖与乳酸化林格氏注射液; 非水性载体的实例包括植物来源 的固定油、 棉籽油、 玉米油、 芝麻油和花生油; 抗微生物剂的实例包 括间曱酚、 苄醇、 氯丁醇、 苯扎氯铵等; 等渗剂的实例包括氯化钠和 葡萄糖; 緩沖剂包括磷酸盐和柠檬酸盐。
本申请的药物组合物还可以制备成无菌的冻干粉针剂, 将化合物 溶于磷酸钠緩沖溶液, 其中含有葡萄糖或其他适合的赋形剂, 随后在 本领域技术人员已知的标准条件下将溶液无菌过滤,继之以冷冻干燥, 得到所需的制剂。 又一方面, 本申请涉及抑制小胶质细胞分泌 IL-Ιβ的方法, 其包 受的盐与小胶质细胞接
Figure imgf000018_0001
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及 Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚。 在某些实施方案中, R1的取代基选自芳基、 芳基烷基、 烷基、 烷 氧基、 代烷基、 素、 羟基、 氨基或氰基。
在某些实施方案中, Ar的取代基选自烷基、 烷氧基、 代烷基、 素、 硝基、 羟基、 氨基、 芳基、 芳基烷基或芳氧基。
再一方面, 本申请涉及治疗和预防由 IL-Ιβ介导的神经炎性疾病 或疾病状态的方法, 其包括向需要所述方法的个体给予治疗有效量的 通式 I化合物或其药物可接受的盐:
Figure imgf000018_0002
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及 Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚。 在某些实施方案中, R1的取代基选自芳基、 芳基烷基、 烷基、 烷 氧基、 代烷基、 素、 羟基、 氨基或氰基。
在某些实施方案中, Ar的取代基选自烷基、 烷氧基、 代烷基、 卤素、 硝基、 羟基、 氨基、 芳基、 芳基烷基或芳氧基。
在某些实施方案中, 所述神经炎性疾病或疾病状态选自老年痴呆 症(阿尔茨海默氏病)、 帕金森氏病、 肌肉萎缩性侧索硬化症、 自体免 疫疾病、 朊毒体病、 中风、 外伤性脑损伤、 脊髓性肌萎缩症、 多发性 硬化、 癫痫和申经性疼痛。
在某些实施方案中, 本申请所述的通式 I化合物或含有通式 I化 合物的药物组合物能够按照下列给药方式给药: 口服、 肠胃外、 腹膜 内、 静脉内、 透皮、 舌下、 肌内、 直肠、 口腔、 鼻内、 脂质体等方式。
其它方面, 本申请涉及治疗和预防老年痴呆症(阿尔茨海默氏病) 的方法, 其包括向需要所述方法的个体给予治疗有效量的通式 I化合 物及其药物可接
Figure imgf000019_0001
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及 Ar选自取代或未取代的杂芳基。
在某些实施方案中, R1的取代基选自芳基、 芳基烷基、 烷基、 烷 氧基、 代烷基、 素、 羟基、 氨基或氰基。
在某些实施方案中, Ar的取代基选自烷基、 烷氧基、 代烷基、 卤素、 硝基、 羟基、 氨基、 芳基、 芳基烷基或芳氧基。 实施例
虽然任何本领域技术人员能够依据上述公开的一般技术来制备本 申请化合物, 但为方便起见, 本说明书中的其它地方提供更加详细的 本申请化合物的合成技术。 另外, 本领域技术人员已知合成中所使用 的所有试剂及反应条件并且可以由普通的商品来源获得。
本申请具体实施例中使用的原料 3-氯 -4-曱基 -6-苯基哒嗪根据国 际申请 WO 2007/127375 中公开的方法制备, 4-氯 -2-苯基喹唑啉根据 国际申请 WO 2008/023357中公开的方法制备, 在此将上述申请的全 部内容并入本申请。 所使用的其他初始原料、 反应试剂等若无特殊说 明均为市售产品。
本申请实施例中使用的核磁共振波谱仪 (400MHz), AV400, 由布 鲁克公司(瑞士)制造。 实施例 1
Figure imgf000020_0001
4
(1) 3-氰基 -4-曱 -6-苯基哒嗪 (化合物 2)
Figure imgf000020_0002
于 50mL 耐压反应管中加入 1.25g(6.1mol)3-氯 -4-曱基 -6-苯基哒 嗪, 0.99g(11.0mol)氰化亚铜和 20mL吡啶, 130。C下反应 24小时, 冷 却, 过滤, 滤饼用 50mL乙酸乙酯洗涤 3次, 有机相用 lOOmL lN HCl 洗两次, 再用无水硫酸钠干燥, 浓缩得到棕色固体化合物 2粗品, 该 粗品不经纯化, 可以直接用于下一步反应, MS: 196.0(M+H+)。
(2) 3-羧基 -4-曱基 -
Figure imgf000020_0003
将实施例 1中制备得到的化合物 2加入到 20mL 8N的 HC1溶液中, 加热回流 4小时, 冷却后用饱和碳酸氢钠中和使之变成钠盐, 乙酸乙 酯萃取 2次, 水相用稀盐酸调 pH至 2, 再用乙酸乙酯萃取 3次, 无水 硫酸钠干燥, 浓缩得到 0.59g 淡黄色固体化合物 3 , 收率 55%, MS: 213·0(Μ-Η+)。 (3)目标
Figure imgf000021_0001
4
于 50mL圓底烧瓶中, 加入 0.40g(1.87mol)化合物 3和 20mL干燥 的二氯曱烷, 再依次加入 0.30g(2.24 mol) HOBt, 0.43g(2.24 mol)EDC 盐酸盐, 0.23g 三乙胺和 0.34g(1.87mol) 1-(4-氟苯基)哌嗪。 混合物于 室温下搅拌 18h, 然后旋转蒸发除去二氯曱烷, 所得油状物用 lOOmL 乙酸乙酯和 50mL饱和碳酸氢钠饱和溶液进行萃取, 有机层相经无水 硫酸钠干燥、 浓缩, 柱层析, 得到白色固体状化合物 4 0.49g, 69%。
^-NMR (400MHz, CDC13) δ 8.10-8.12(m, 2H), 7.77(s, 2H), 7.53-7.57(m, 3H), 6.97-7.01(m, 2H), 6.89-6.93(m, 2H), 4.06(t, J=4.8 Hz, 2H), 3.59(t, J=4.8 Hz, 2H), 3.14(t, J=4.8 Hz, 2H), 2.49(s, 3H); MS: 377.2(M+H+). 买施例 2
(4—(2,4—二氟苯基)哌嗪基 )(4—曱基 -6-苯基哒嗪)曱酮 (化合物 4a)
Figure imgf000021_0002
以 1-(2,4-二氟苯基)哌嗪和 3-羧基 -4-曱基 -6-苯基哒嗪为原料, 参 考实施例 1中化合物 4的合成方法, 制备得到化合物 4a。
^-NMR (400MHz, CDC13) δ 8.08-8.09(m, 2H), 7.76(s, 1H), 7.51-7.55(m, 3H), 6.91-6.93(m, 1H), 6.81-6.85(m, 2H), 4.06(t, J=4.8 Hz, 2H), 3.58(t, J=4.8 Hz, 2H), 3.17(t, J=4.8 Hz, 2H), 3.07(t, J=4.8 Hz, 2H), 2.48(s, 3H); MS: 395.1(M+H+), 417.1(M+Na+). 买施例 3
(2-嘧啶哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮 (化合物 5)
Figure imgf000021_0003
5
以 1-( 2-嘧啶基)哌嗪和 3-羧基 -4-曱基 -6-苯基哒嗪为原料, 参考实 施例 1中化合物 4的合成方法, 制备得到化合物 5。
^-NMR (400MHz, CDC13) δ 8.32(d, J=4.4 Hz, 2H), 8.08-8. l l(m, 2H), 7.77(s, IH), 7.51-7.54(m, 3H), 6.54(t, J=4.8 Hz, IH), 4.03(m, 2H), 3.97(m, 2H), 3.90(m, 2H), 3.50(m, 2H), 2.48(s, 3H); MS: m/e 361.1(M+H+), 383.1(M+Na+). 实施例 4
(4-曱基 -6-苯基哒嗪)曱酮 (化合物 6)
Figure imgf000022_0001
以 1-(2-吡啶基)哌嗪和 3-羧基 -4-曱基 -6-苯基哒嗪为原料, 参考实 施例 1 中化合物 4的合成方法, 制备得到化合物 6, 淡黄色固体, 收 率 64%。
^-NMR (400MHz, CDC13) δ 8.19(d, J=1.2 Hz, 2H), 8.08-8. l l(m, 2H), 7.76(s, IH), 7.49-7.56(m, 4H), 6.68(m, IH), 4.02(m, 2H), 3.74(m, 2H), 3.63(m, 2H), 3.55(m, 2H), 2.48(s, 3H). MS: m/e 360.1(M+H+), 382.1(M+Na+). 实施例 5
Figure imgf000022_0002
(1) 4-氰基 -2-苯基喹唑 (化合物 9)
Figure imgf000022_0003
于 48mL 反应管中加入 1.00g(4.15mol)4-氯 -2-苯基喹唑啉 0.40g(6.23mol)氰化钾, 0.27g(1.38mol)对曱基苯磺酸钠和 20mL Ν,Ν- 二曱基曱酰胺,混合物在 80。C反应 2小时, 冷却, 加入 50mL水搅拌, 用 150mL 乙醚萃取,有机相经无水硫酸钠干燥, 浓缩得到化合物 9的 棕色固体粗品, MS: 232.0(M+H+)。
(2) 2-苯基 -4-喹唑啉曱 (化合物 10)
Figure imgf000023_0001
于 50mL 圓底烧瓶中加入化合物 9和 20mL 8mol/L 的 HC1溶液, 加热回流 4小时后, 冷却, 用饱和碳酸氢钠中和使之变成钠盐, 乙酸 乙酯萃取 2次, 所得水相用经稀盐酸调 pH值至 2, 再用乙酸乙酯萃取 3次, 有机相经无水硫酸钠干燥、 浓缩后得到化合物 10的淡黄色固体 粗品(0.75g, 70%), MS: 249·0(Μ-Η -)。
(3) 目标化合物 (化
Figure imgf000023_0002
以化合物 10和 1-(4-氟苯基)哌嗪为原料, 参考实施例 1中化合物 4的合成方法, 制备得到化合物 11的淡黄色固体, 收率 20%。
^-NMR (400MHz, CDC13) δ 8.62-8.64(m, 2Η), 8.14(d, J=8.4 Hz, IH), 8.04(d, J=8.0 Hz, IH), 7.93(t, J=8.0 Hz, IH), 7.62(t, J=8.0 Hz, IH), 7.52-7.55(m, 3H), 6.98(t, J=8.8 Hz, IH), 6.88-6.91 (m, 2H), 4.14(t, J=4.8 Hz, 2H), 3.52(t, J=4.8 Hz, 2H), 3.32(t, J=4.8 Hz, 2H), 3.08(t, J=4.8 Hz, 2H); MS: 413.1(M+H+), 435.1(M+Na+). 实施例 6
(4-(5-氟嘧啶 -2-基)哌嗪基 )(2-苯基喹唑啉)曱酮 (化合物 I2)
Figure imgf000024_0001
以化合物 10和 4-(5-氟嘧啶 -2-基)哌嗪为原料, 参考实施例 1中化 合物 4的合成方法, 制备得到化合物 12的淡黄色固体, 收率 82%。
^-NMR (400MHz, CDC13) δ 8.61-8.64(m, 2Η), 8.22(s, 2H), 8.14(d, J=8.4 Hz, IH), 8.04 (d, J=8.4 Hz, IH), 7.94(t, J=8.0 Hz, IH), 7.62(t, J=8.0 Hz, IH), 7.52-7.55(m, 3H), 4.04-4.14(m, 4H), 3.82(t, J=5.2 Hz, 2H) 3.44(t, J=5.2 Hz, 2H); MS: 415.1 (M+H+), 437.1(M+Na+). 实施例 7
(4- (嘧啶 -2-基)哌嗪 )(2-苯基喹唑啉)曱酮 (化合物 12a)
Figure imgf000024_0002
以化合物 10和 4- (嘧啶 -2-基)哌嗪为原料,参考实施例 1中化合物 4的合成方法, 制备得到化合物 12。
^-NMR (400MHz, CDC13) δ 8.61-8.64(m, 2Η), 8.32(m, 2H), 8.14(d J=8.4 Hz, IH), 8.05 (d, J=8.0 Hz, IH), 7.93(t, J=7.2 Hz, IH), 7.62(t, J=7.2 Hz, IH), 7.51-7.54(m, 3H), 6.55(t, J=4.4 Hz, IH), 4.05-4.12(m, 4H): 3.87(t, J=5.2 Hz, 2H), 3.44(t, J=5.2 Hz, 2H); MS: 397.1 (M+H+), 419.1(M+Na+). 实施例 8
(4-(2-吡啶基)哌嗪基 )(2-苯基喹唑啉)曱酮 (化合物 13)
Figure imgf000025_0001
以化合物 10和 4-(2-吡啶基)哌嗪为原料, 参考实施例 1中化合物 4的合成方法, 制备得到化合物 13的淡黄色固体, 收率 82%。
^-NMR (400MHz, CDC13) δ 8.62-8.64(m, 2Η), 8.20(d, J=3.6 Hz, 2H), 8.14(d, J=8.4 Hz, IH), 8.04(d, J=8.4 Hz, IH), 7.93(t, J=8.0 Hz, IH), 7.61(t, J=5.4 Hz, IH), 7.48-7.53(m, 4H), 6.65-6.69(m, 2H), 4.08-4.14 (m, 2H), 3.78-3.80 (m, 2H), 3.51-3.59 (m, 2H), 3.46-3.49 (m, 2H); MS: 369.2 (M+H+), 418.2(M+Na+). 实施例 9
(4—(4—氟 合物 I4)
Figure imgf000025_0002
以 4-(4-氟苯基)哌嗪和吡咯 -2-曱酸为原料, 参考实施例 1 中化合 物 4的合成方法, 制备得到化合物 14的白色固体, 收率 75%。
^-NMR (400MHz, CDC13) δ 10.15(bs, IH), 6.96-7.02(m, 2H), 6.86-6.95(m, 3H), 6.56(t, J=2.0 Hz, IH), 6.26(q, J=2.4 Hz, IH), 4.01(t, J=3.6 Hz, 4H), 3.14-3.19(m, 4H); MS: 274.1 (M+H+). 实施例 10
(4-(4-氟苯 化合物 15)
Figure imgf000025_0003
以 4-(4-氟苯基)哌嗪和噻吩 -2-曱酸为原料, 参考实施例 1 中化合 物 4的合成方法, 制备得到化合物 15的白色固体, 收率 15%。
^-NMR (400MHz, CDC13) δ 7.65(d, J=4.8 Hz, IH), 7.43 (d, J=5.4 Hz, IH), 7.12(t, J=4.0 Hz, IH), 7 ni-7.03(m, 4H), 3.86(t, J=4.8 Hz, 4H), 3.18(t, J=4.8 Hz, 4H); MS: 291.0 (M+H+). 实施例 11
(4- (嘧啶 -2- (化合物 17)
Figure imgf000026_0001
以 4- (嘧啶 -2-基)哌嗪和吲唑 -3-曱酸为原料, 参考实施例 1中化合 物 4的合成方法, 制备得到化合物 17, 白色固体, 收率 40%。
^-NMR (400MHz, CDC13) δ 13.56(s, IH), 8.40(d, J=4.8 Hz, 2H), 8.01 (d, J=8.4 Hz, IH), 7.62 (d, J=8.0 Hz, IH), 7.42(t, J=7.6 Hz, IH), 7.22(t, J=7.6 Hz, IH), 6.66 (t, J=4.8 Hz, IH), 4.11(bs, IH), 3.83-3.84(m, 6H); MS: 308.1 (M+H+). 实施例 12
(4—(4—氟苯 合物 is)
Figure imgf000026_0002
以 4-(4-氟苯基)哌嗪和吲唑 -3-曱酸为原料, 参考实施例 1 中化合 物 4的合成方法, 制备得到化合物 18 , 白色固体, 收率 74%。
^-NMR (400MHz, CDC13) δ 8.34(d, J=8.0 Hz, IH), 7.81-7.87 (m, IH), 7.63-7.67 (m, IH), 7.45-7.50 (m, IH), 7.19-7.28 (m, 4H), 4.60(bs, 2H), 4.25(bs, 2H), 3.53(bs, 4H); MS: 323.1 (M+H+). 实施例 13
(4—(4—氟苯基 (化合物 19)
Figure imgf000026_0003
以 4-(4—氟苯基)哌嗪和 5-氟吲唑 -3-曱酸为原料, 参考实施例 1 中 化合物 4的合成方法, 制备得到化合物 19, 淡黄色固体, 收率 45%。
^-NMR (400MHz, CDC13) δ 10.49(bs, 1Η), 7.84(d, J=4.4 Hz, 1H), 7.44-7.48 (m, 1H), 7.20-7.26 (m,lH), 6.92-7.01(m, 4H), 4.30(bs, 2H), 4.30(bs, 2H), 3.20(bs, 4H); MS: 343.1 (M+H+). 实施例 14
(4—(4—氟苯基)哌嗪基 )(4,7-二氟吲唑 -3-基)曱酮 (化合物 20)
Figure imgf000027_0001
以 4-(4-氟苯基)哌嗪和 4,7-二氟吲唑 -3-曱酸为原料,参考实施例 1 中化合物 4的合成方法,制备得到化合物 20, 淡黄色固体, 收率 66%。
^-NMR (400MHz, CH3OD) δ 7.00-7.12(m, 5Η), 7.78 (bs, 1H), 4.00(bs, 2H), 3.74(bs, 2H), 3.23(bs, 2H), 3.10(bs, 2H); MS: 343.1 (M+H+). 实施例 15
(4-(4-氟苯基)哌嗪基 )(5-氯吲唑 -3 -基)曱酮 (化合物 21 )
Figure imgf000027_0002
以 4-(4-氟苯基)哌嗪和 5-氯吲唑 -3-曱酸为原料, 参考实施例 1 中 化合物 4的合成方法, 制备得到化合物 21 , 淡黄色固体, 收率 51%。
^-NMR (400MHz, D20) δ 7.29-7.33(m, 3Η), 7.11-7.16 (m, 4H), 3.20(m, 8H); MS: 357.0/359.0(3/1) (M-H"). 实施例 16
(4—(2-嘧啶基) 酮 (化合物 22)
Figure imgf000027_0003
以 4-(2-嘧啶基)哌嗪和 5-异丙基吡唑 -3-曱酸为原料, 参考实施例 1中化合物 4的合成方法, 制备得到化合物 22, 白色固体, 收率 29%。
^-NMR (400MHz, CDC13) δ 6.95-7.18(m, 2Η), 6.88-6.91 (m, 2H), 6.46 (s, IH), 4.13 (bs, 2H), 3.15 (bs, 4H), 2.74-2.79(m, IH), 1.31(d, J=6.8 Hz, 6H), MS: 317.1 (M+H+). 实施例 17
(4—(4—氟苯基)哌嗪基 )(5—异丙基吡唑 -3—基)曱酮 (化合物 23)
Figure imgf000028_0001
以 4-(4-氟苯基)哌嗪和 5-异丙基吡唑 -3-曱酸为原料, 参考实施例
1中化合物 4的合成方法,制备得到化合物 23,淡黄色固体,收率 45%。
^-NMR (400MHz, CDC13) δ 11.15(bs, IH), 8.32(t, J=4.0 Hz, 2H), 6.52 (d, J=4.0 Hz, IH), 6.45 (s, IH), 4.07 (bs, 2H), 3.90 (bs, 6H), 3.00 (t, J=7.2 Hz, IH), 1.31(d, J=6.8 Hz, 6H), 1.29(d, J=6.4 Hz, 6H); MS: 317.1 (M+H+). 实施例 18
(2-(4-氟嘧啶)哌嗪基 )(4-曱基 -6-苯基哒嗪)曱酮 (化合物 24)
Figure imgf000028_0002
24
以 l-(4-氟嘧啶基)哌嗪和 3-羧基 -4-曱基 -6-苯基哒嗪为原料, 参考 实施例 1中化合物 4的合成方法, 制备得到化合物 24, 白色固体, 收 率 72%。
!H NMR (CDC13): δ 8.22 (s, 2H), 8.08 (m, 2H), 7.76 (s, IH), 7.52 (m, 3H), 3.96 (s, 4H), 3.84 (dd, J=5.2 Hz, J=3.2 Hz, 2H), 3.48 (dd, J=3.2 Hz, J=3.2 Hz, 2H), 2.47 (s, 3H). MS (ESI): [M+H]+ 379.1, [M+Na]+ 401.1. 实施例 19
(2-吡嗪哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮 (化合物 25)
Figure imgf000029_0001
25
以 l-(2-吡嗪基)哌嗪和 3-羧基 -4-曱基 -6-苯基哒嗪为原料, 参考实 施例 1中化合物 4的合成方法, 制备得到化合物 25, 白色固体, 收率 82%。
lR NMR (CDC13): δ 8.19 (d, J=3.2 Hz, IH), 8.10 (m, 3H), 7.92 (d, /=3·2 Hz, IH), 7.77 (s, IH), 7.53 (m, 3H), 4.03 (dd, J=4.S Hz, J=3.2 Hz, 2H), 3.81 (dd, J=3.2 Hz, /=4·8 Hz, 2H), 3.70 (dd, /=4·8 Hz, J=3.2 Hz, 2H), 3.60 (dd, J=3.2 Hz, J=4.S Hz, 2H), 2.49 (s, 3H). MS (ESI): [M+H]+ 361.1. 实施例 20
(N-曱基哌嗪 (4-曱基 -6-苯基哒嗪)曱酮 (化合物 26)
Figure imgf000029_0002
以 1-曱基哌嗪和 3-羧基 -4-曱基 -6-苯基哒嗪为原料, 参考实施例 1 中化合物 4的合成方法,制备得到化合物 26, 淡黄色固体, 收率 75%。
lR NMR (CDC13): δ 8.06 (m, 2Η), 7.72 (s, IH), 7.50(m, 3H), 3.89 (bs, 2H), 3.40 (t, /=4·8 Hz, 2H), 2.54 (t, /=4·8 Hz, 2H), 2.43 (m, 5H), 2.31 (s, 3H). MS (ESI): [M+H]+ 297.1, [M+Na]+319.1. 实施例 21
(N-异丙基哌嗪 )(4-曱基 -6-苯基哒嗪)曱酮 (化合物 27)
Figure imgf000029_0003
以 N-异丙基哌嗪和 3-羧基 -4-曱基 -6-苯基哒嗪为原料, 参考实施 例 1中化合物 4的合成方法, 制备得到化合物 27, 淡黄色固体, 收率 60%。
lR NMR (CDC13): δ 8.08 (m, 2Η), 7.74 (s, IH), 7.53(m, 3H), 3.90 (t, /=4·8 Hz, 2H), 3.41 (t, /=4·8 Hz, 2H), 2.76 (m, IH), 2.66 (t, /=4·8 Hz, 2H), 2.55 (t, /=4·8 Hz, 2H), 2.46 (s, 3H), 1.06 (d, J=6A Hz, 6H). MS (ESI): [M+Hf 325.1. 实施例 22
(N-环己烷哌 )(4-曱基 -6-苯基哒嗪)曱酮 (化合物 28)
Figure imgf000030_0001
以 N-环己烷哌嗪和 3-羧基 -4-曱基 -6-苯基哒嗪为原料, 参考实施 例 1中化合物 4的合成方法, 制备得到化合物 28, 淡黄色固体, 收率 80 %。
lR NMR (CDC13): δ 8.09 (m, 2H), 7.74 (s, IH), 7.53(m, 3H), 3.90 (t, /=4·8 Hz, 2H), 3.40 (t, /=4·8 Hz, 2H), 2.72 (t, /=4·8 Hz, 2H), 2.60 (t, /=4·8 Hz, 2H), 2.45 (s, 3H), 2.33 (m, IH), 1.84 (m, 4H), 1.62 (m, 2H), 1.24 (m, 4H). MS (ESI): [M+H]+ 365.2. 实施例 23
(4-(4—吡啶基)哌嗪 )(2-苯基喹唑啉)曱酮 (化合物 34)
Figure imgf000030_0002
以化合物 10和 4-吡啶哌嗪为原料,参考实施例 1中化合物 4的合 成方法, 制备得到化合物 34的淡黄色固体, 收率 75%。
lR NMR (CDC13): δ 8.63 (m, 2Η), 8.30 (bs, 2H), 8.15 (d, J=SA Hz, IH), 8.04 (d, /=8·4 Hz, IH), 7.95 (t, J=7.2 Hz, IH), 7.65 (t, J=7.2 Hz, IH), 6.71 (d, /=4·8 Hz, IH), 4.13 (t, /=4·8 Hz, 2H), 3.65 (t, /=4·8 Hz, 2H), 3.56 (t, /=4·8 Hz, 2H), 3.42 (t, /=4·8 Hz, 2H). MS (ESI): [M+H]+ 396.0. 实施例 24
(4-(2-吡嗪基)哌嗪基 )(2-苯基喹唑啉)曱酮 (化合物 35)
Figure imgf000031_0001
以化合物 10和 4-(2-吡嗪基)哌嗪为原料, 参考实施例 1中化合物 4的合成方法, 制备得到化合物 35的白色固体, 收率 81%。
!H NMR (CDC13): δ 8.62 (m, 2H), 8.16 (m, 2H), 8.10 (s, IH), 8.04 (d /=8·4 Hz, IH), 7.93 (m, 2H), 7.64 (t, J=l .6 Hz, IH), 7.55 (m, 3H), 4.13 (m, 2H), 3.85 (m, 2H), 3.65 (m, 2H), 3.52 (m, 2H). MS (ESI): [M+H]+ 397.2. 实施例 25
(4-曱基哌嗪基) 曱酮 (化合物 36)
Figure imgf000031_0002
以化合物 10和 4-曱基哌嗪基为原料, 参考实施例 1 中化合物 4 的合成方法, 制备得到化合物 36的淡黄色固体, 收率 35%。
!H NMR (CDC13): δ 8.62 (m, 2Η), 8.14 (d, /=8·4 Hz, IH), 8.03 (d, •7=8.4 Hz, IH), 7.94 (dt, /=0·8, J=7.2 Hz, IH), 7.62 (dt, /=0·8, J=7.2 Hz, IH), 7.51 (m, 3H), 4.01 (t, J=5.2 Hz, 2H), 3.37 (t, J=5.2 Hz, 2H), 2.63 (t, •7=5.2 Hz, 2H), 2.38 (t, J=5.2 Hz, 2H). MS (ESI): [M+H]+ 333.2. 实施例 26
(4-异丙基哌嗪基 )(2-苯基喹唑啉)曱酮 (化合物 37)
Figure imgf000032_0001
以化合物 10和 4-异丙基哌嗪为原料, 参考实施例 1 中化合物 4 的合成方法, 制备得到化合物 37的淡黄色固体, 收率 35%。
!H NMR (CDC13): δ 8.63(m, 2H), 8.14 (d, /=8·4 Hz, IH), 8.01 (d, •7=8.4 Hz, IH), 7.94 (dt, /=0·8, J=7.2 Hz, IH), 7.62 (dt, /=0·8, J=7.2 Hz, IH), 7.52 (m, 3H), 3.99 (t, /=4·8 Hz, 2H), 3.34 (t, /=4·8 Hz, 2H), 2.73 (t, •7=4.8 Hz, 2H), 2.47 (t, /=4·8 Hz, 2H). MS (ESI): [M+H]+ 361.2. 实施例 27
(环己烷基哌嗪基 (2-苯基喹唑啉)曱酮 (化合物 38)
Figure imgf000032_0002
以化合物 10和 4-环己烷基哌嗪为原料,参考实施例 1中化合物 4 的合成方法, 制备得到化合物 38的淡黄色固体, 收率 88%。
!H NMR (CDC13): δ 8.63(m, 2Η), 8.11 (d, /=8·4 Hz, IH), 8.01 (d, •7=8.4 Hz, IH), 7.93 (dt, J=l.2, J=7.2 Hz, IH), 7.61 (dt, /=0·8, J=7.2 Hz, IH), 7.52 (m, 3H), 3.97 (t, /=4·8 Hz, 2H), 3.33 (t, /=4·8 Hz, 2H), 2.77 (t, /=4·8 Hz, 2H), 2.50 (t, /=4·8 Hz, 2H), 2.30 (m, IH), 1.83 (m, 4H), 1.63 (m, 2H), 1.23 (m, 4H). MS (ESI): [M+H]+ 401.3. 实施例 28
体外活性测定
本申请化合物的活性测试采用本领域中已知的方法来测定, 所使 专一抑制小胶质细胞分泌 IL-Ιβ的效率来评估其潜在的应用价值。
研究表明小胶质细胞是中枢神经系统受损伤后最早发生反应的细 胞类型, 中枢神经系统的多种病理状态均可激活小胶质细胞, 例如创 伤、 脑中风、 炎症反应和神经退行性疾病等。 激活后的小胶质细胞参 与多种神经系统疾病的病理过程, 例如, 激活后的小胶质细胞通过释 放自由基可以引起运动神经元的损伤。 在帕金森氏病患者和帕金森氏 病动物模型中除了黑质致密部大量多巴胺能神经元坏死外, 还有大量 的小胶质细胞的增值, 这些激活的小胶质细胞可以产生大量的超氧自 由基, 超氧自由基被认为是造成帕金森氏病患者脑中多巴胺能神经元 坏死的氧化应激的主要原因。 在阿尔兹海默氏病 (AD )患者大脑的老年 斑周围有大量激活的小胶质细胞, 这些小胶质细胞通过释放细胞因子 可以诱导神经元和星形胶质细胞表达淀粉样前体蛋白(APP),淀粉样前 体蛋白的大量沉积是造成 AD的重要原因。 诸多证据表明, 神经细胞 的凋亡与小胶质细胞的活化密切相关, β 淀粉样蛋白激活小胶质细胞 介导的免疫炎症反应能引起 AD特有的细胞凋亡和认知功能障碍。 激 活的小胶质细胞释放的 TNF-α等炎性因子可以损伤少突胶质细胞和髓 鞘, 引起多发性硬化 (MS)。
此外, 小胶质细胞的激活对神经病理性痛的产生和维持具有非常 重要的作用。在疼痛刺激下小胶质细胞被激活,傅开元发现, [傅开元, 外周炎症性疼痛刺激诱发中枢神经系统小胶质细胞增殖活化。 中国神 经免疫学和神经病学杂志 2001,8: 179-183·] , 外周炎症性致痛剂福尔 马林刺激后, 中枢小胶质细胞增殖活化, 可能是慢性疼痛长期持续的 原因之一。 用药物(如 fluorocitrate)抑制小胶质细胞功能, 可产生明显 的镇痛作用, 提示胶质细胞的激活对神经病理性痛的产生和维持具有 非常的相关性。
近年来研究发现癫痫患儿常同时存在免疫功能低下, 小胶质细胞 是中枢神经系统巨噬细胞, 在脑内免疫炎症反应的启动、 发展、 转归 过程中起着很重要的作用。 小胶质细胞活化引起的星形胶质细胞变性 坏死可能是癫痫重要的生理通路。
目前在一些神经炎症性疾病的治疗中, 抑制小胶质细胞激活的药 物研究越来越受到重视。 中枢神经系统 IL-Ιβ的水平对于小胶质细胞 由选择状态向完全活化状态的转变起着重要作用, 因此我们根据候选 化合物专一抑制小胶质细胞分泌 IL-Ιβ的效率来评估其潜在的应用价 值。 实马全方法:
1. 鼠源小胶质细胞系 BV2和胶质瘤细胞系 C6 分别培养在含有
10%FBS的 DMEM培养基中, 培养第 6代至第 15代的细胞用于候选 化合物活性筛选。 培养细胞按 50,000个细胞 /孔接种于 24孔细胞培养 板,在培养 1天后更换为低血清培养基 (添加 2%FBS)继续培养 16小时。 在培养基中加入 300ng/ml (用于诱导 BV2细胞)或 Img/mL (用于诱导 C6 细胞) LPS (Salmonella typhimutium) 诱导培养细胞分泌 IL-ip。 并同时 按终浓度 200ρΜ, 20ηΜ, 2μΜ和 200μΜ加入待测样品(DMSO≤0.1%); 向空白加入 0.1 % DMSO作为溶剂对照组。
2. LPS诱导 /药物处理 24小时后, 收集培养液定量检测其中 IL-Ιβ 水平。 培养液样品于 4。C离心(8,000G)10分钟, 除去培养液中的悬浮 颗粒杂质。 将上清液稀释 1倍, 取 150μΙ^样品用于 ELISA (Bioso rce) 检测。
3. 培养细胞处理和 ELISA检测采用双盲法进行。
4. 候选化合物抑制效率根据公式①计算, 并计算每种候选化合物 的 IC50
公式①: 抑制率(%)=([IL- 1 ]LPS «导 -[LL-Ιβ]药物处理) /[LL-ip]Lps 诱导 xl00%。
5. 候选化合物疗效评价: 以化合物对 B V2分泌 IL- 1 β的抑制率阳 性为判断化合物有效的标准; 并以对 C6分泌 IL-Ιβ 的抑制率为阴性 作为判断化合物安全的指标。 实验结果: 表 1: 本发明化合物抑制 BV2分泌 IL-Ιβ的 IC
Figure imgf000034_0001
表 2: 本发明化合物浓度为 20ηΜ时对 BV2分泌 IL-Ιβ的抑制率
20nM的抑制率(% 化合物 20 48.0639 ± 0.0618
化合物 4 54.6064 + 0.0117
化合物 5 54.5398 + 0.0357
化合物 12a 46.1355 + 0.0571 实验结果显示本发明化合物具有高效抑制 BV2分泌 IL- 1 β的作用, IC50达到 nM水平。当浓度为 20nM时,本发明化合物对 BV2分泌 IL-Ιβ 的抑制率都超过或者接近 50%。 本文将本说明书中提及的全部专利、 专利申请出版物、 专利申请、 及非专利出版物的全部内容引入作为参考。

Claims

权利要求书
1. 通式 I化合物及其药物可接受的盐:
Figure imgf000036_0001
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及 Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚。
2. 通式 I化合物及其药物可接受的盐:
Figure imgf000036_0002
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基, 取代基选自芳基、 芳基烷基、 烷基、 烷氧基、 代烷基、 卤 素、 羟基、 氨基或氰基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及 Ar选自取代或未取代的杂芳基, 条件是所述杂芳基不是吲哚, 取 代基选自烷基、 烷氧基、 代烷基、 素、 硝基、 羟基、 氨基、 芳基、 芳基烷基或芳氧基。
3. 如权利要求 1或 2所述的通式 I化合物及其药物可接受的盐, 其中 R1选自取代或未取代的 C C6烷基、 取代或未取代的 。环烷 基、 取代或未取代的 c6-c1()芳基或者取代或未取代的五至十个原子的 杂芳基, 其中取代基选自芳基、 芳基烷基、 烷基、 烷氧基、 代烷基、 卤素、 羟基、 氨基或氰基。 4. 如权利要求 1-3中任一权利要求所述的通式 I化合物及其药物 可接受的盐, R1选自 4-氟苯基、 2,
4-二氟苯基、 嘧啶 -2-基、 吡啶 -2-基、 5-氟嘧啶 -2-基、 吡嗪 -2-基、 吡啶 -4-基、 曱基、 异丙基或环己基。
5. 如权利要求 1-4中任一权利要求所述的通式 I化合物及其药物 可接受的盐, R2、 R3、 R4、 R5分别选自氢。
6. 如权利要求 1-5中任一权利要求所述的通式 I化合物及其药物 可接受的盐, Ar选自取代或未取代的哒嗪基、 取代或未取代的喹唑啉 基、 取代或未取代的吡咯基、 取代或未取代的噻吩基、 取代或未取代 的吲唑基或者取代或未取代的吡唑基。
7. 如权利要求 1-6中任一权利要求所述的通式 I化合物及其药物 可接受的盐, Ar选自 4-曱基 -6-苯基哒嗪 -3-基、 吲哚 -2-基、 2-苯基喹 唑啉 -4-基、 吡咯 -2-基、 噻吩 -2-基、 吲唑 -3-基、 5-氟吲唑 -3-基、 4,7- 二氟吲唑 -3-基、 5-氯吲唑 -3-基或 5-异丙基吡唑 -3-基。
8. 如权利要求 1-7中任一权利要求所述的通式 I化合物及其药物 可接受的盐, 其选自下列化合物或其药物可接受的盐:
(4-(4-氟苯基)哌嗪基 )(4-曱基 -6-苯基哒嗪)曱酮;
(4-(2,4-二氟苯基)哌嗪基 )(4-曱基 -6-苯基哒嗪)曱酮;
(2-嘧啶哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮;
(2-吡啶哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮;
(4-(4-氟苯基)哌嗪基 )(2-苯基喹唑啉)曱酮;
(4-(5-氟嘧啶 -2-基)哌嗪基 )(2-苯基喹唑啉)曱酮;
(4- (嘧啶 -2-基)哌嗪基 )(2-苯基喹唑啉)曱酮;
(4-(2-吡啶基)哌嗪基 )(2-苯基喹唑啉)曱酮;
(4—(4—氟苯基)哌嗪基) (吡咯―2—基)曱酮;
(4—(4—氟苯基)哌嗪基) (噻吩―2—基)曱酮;
(4- (嘧啶 -2-基)哌嗪基) (吲唑 -3-基)曱酮;
(4-(4-氟苯基)哌嗪基) (吲唑 -3-基)曱酮;
(4—(4—氟苯基)哌嗪基 )(5-氟吲唑 -3-基)曱酮; (4—(4—氟苯基)哌嗪基 )(4,7-二氟吲唑 -3-基)曱酮;
(4—(4—氟苯基)哌嗪基 )(5-氯吲唑 -3-基)曱酮;
(4-(2-嘧啶基)哌嗪基 )(5-异丙基吡唑 -3-基)曱酮;
(4-(4-氟苯基)哌嗪基 )(5-异丙基吡唑 -3-基)曱酮;
(2-(4-氟嘧啶)哌嗪基 )(4-曱基 -6-苯基哒嗪)曱酮;
(2-吡嗪哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮;
(N-曱基哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮;
(N-异丙基哌嗪基 )(4-曱基 -6-苯基哒嗪)曱酮;
(N-环己烷哌嗪基) (4-曱基 -6-苯基哒嗪)曱酮;
(4-(4-吡啶基)哌嗪基 )(2-苯基喹唑啉)曱酮;
(4-(2-吡嗪基)哌嗪基 )(2-苯基喹唑啉)曱酮;
(4-曱基哌嗪基) (2-苯基喹唑啉)曱酮;
(4-异丙基哌嗪基 )(2-苯基喹唑啉)曱酮; 或者
(环己烷基哌嗪基 )(2-苯基喹唑啉)曱酮。
9. 制备权利要求 1-8中任一权利要求所述的化合物及其药物可接 受
Figure imgf000038_0001
通式 A 通式 B 通式 I
其中, R1 R2、 R3、 R4、 R5、 Ar同各权利要求中通式 I中的定义, R6为氢或烷基; 以及
如果需要, 将通式 I化合物转化成其药物可接受的盐。
10. 如权利要求 9所述的方法, 其中所述方法在缩合剂的存在下 进行,缩合剂选自二环己基碳二亚胺 (DCC)、二异丙基碳二亚胺 (DIC)、 乙基二曱基氨基丙基碳二亚胺 (EDC)或乙基二曱基氨基丙基碳二亚胺 盐酸盐(EDCI)。
11. 药物组合物, 其包含药物可接受的载体以及权利要求 1-8 中 任一权利要求所述的通式 I化合物或其药物可接受的盐。
12. 抑制小胶质细胞分泌 IL- 1 β的方法,其包括将治疗有效量的权 利要求 1-8 中任一权利要求所述通式 I化合物或其药物可接受的盐与 小胶质细胞接触或者将治疗有效量的权利要求 11 所述的药物组合物 与小胶质细胞接触。
13. 治疗和预防由 IL-Ιβ介导的神经炎性疾病或疾病状态的方法, 其包括向需要所述方法的个体给予治疗有效量的权利要求 1-8 中任一 权利要求所述通式 I化合物或其药物可接受的盐或者给予治疗有效量 的权利要求 11所述的药物组合物。
14. 如权利要求 13所述的方法, 其中所述疾病或疾病状态选自老 年痴呆症(阿尔茨海默氏病)、 帕金森氏病、 ^^肉萎缩性侧索硬化症、 自体免疫疾病、 朊毒体病、 中风、 外伤性脑损伤、 脊髓性肌萎缩症、 多发性硬化、 癫痫和神经性疼痛。
15. 如权利要求 14所述的方法, 其中所述疾病或疾病状态为老年 痴呆症(阿尔茨海默氏病)。
16. 治疗和预防老年痴呆症(阿尔茨海默氏病)的方法,其包括向需 所述方法的个体给予治疗有效量的通式 I化合物及其药物可接受的
Figure imgf000039_0001
通式 I
其中, R1选自氢、取代或未取代的烷基、取代或未取代的环烷基、 取代或未取代的芳基、 取代或未取代的杂芳基或者取代或未取代的杂 环烷基;
R2、 R3、 R4、 R5分别选自氢、 羟基、 氨基、 硝基、 氰基、 卤素、 烷基、 烷氧基、 环烷基、 芳基、 芳基烷基、 杂芳基或杂环烷基; 以及 Ar选自取代或未取代的杂芳基。
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