摘要:
The present invention is concerned with novel isoxazoles of formula I wherein X, R1, R2, R3 and R4 are as described herein, as well as pharmaceutically acceptable salts and esters thereof. The active compounds of the present invention have affinity and selectivity for GABA A α5 receptor. Further the present invention is concerned with the manufacture of the active compounds of formula I, pharmaceutical compositions containing them and their use as therapeutics.
摘要:
The present invention is concerned with a method of treating a disease selected from the group consisting of cognitive disorders, anxiety, Alzheimer's disease, and schizophrenia comprising administering a therapeutically effective amount of a substituted imidazo[1,5-a][1,2,4]triazolo[1,5-d][1,4]benzodiazepine derivatives of the following formula wherein R1 is halogen, lower alkyl, lower alkynyl, cycloalkyl, lower alkoxy, OCF3, —NHR, —NHC(O)R or —NHSO2R; R2 is hydrogen, methyl or aryl which is unsubstituted or substituted by one or two substituents selected from the group consisting of halogen and lower alkoxy; R3 is hydrogen, lower alkyl, lower alkenyl, cycloalkyl, lower alkoxy, —O(CH2)n+1—O-lower alkyl, —(CH2)n-aryl which is optionally substituted by lower alkyl or halogen, heteroaryl, —NHR, —N(R)2, wherein each R can be the same or different, —NHCH2C≡CH, or pyrrolidin-1-one; R is hydrogen, lower alkyl, lower alkyl substituted by halogen, heteroaryl, —(CH2)nO-lower alkyl, —NH-lower alkyl, cycloalkyl or aryl, and n is 0, 1, 2 or 3; and with their pharmaceutically acceptable acid addition salts. The invention also provides novel compounds of formula I-A and pharmaceutical compositions containing them. The most preferred indication is Alzheimer's disease.
摘要:
The present invention is concerned with isoxazol-4-yl-oxadiazole derivatives of formula wherein R1, R2, and R3, are as defined in the specification and pharmaceutically acceptable acid addition salts thereof. This class of compounds has high affinity and selectivity for GABA A α5 receptor binding sites and might be useful as cognitive enhancer or for the treatment of cognitive disorders like Alzheimer's disease.
摘要:
The present invention is concerned with substituted imidazo[1,5-a][1,2,4]triazolo[1,5-d][1,4]benzodiazepine derivatives of the formula I wherein R1 is hydrogen, halogen, lower alkyl, lower alkyl substituted by halogen, lower alkoxy, lower alkoxy substituted by halogen, nitro, cycloalkyl, —O(CH2)mO(CH2)mOH or —C≡C—R′; R2 is hydrogen or methyl; R3 is lower alkyl, lower alkyl substituted by halogen, lower alkenyl, lower alkenyl substituted by halogen, lower alkynyl, —(CH2)n-cycloalkyl, —(CR′R″)m—CH3, phenyl that is unsubstituted or substituted by halogen, pyridinyl or thienyl each of which is unsubstituted or substituted by lower alkyl, —(CH2)n—NH-cycloalkyl, lower alkenyl-cycloalkyl, lower alkynyl-(CR′R″)mOH, or lower alkynyl-phenyl wherein the phenyl ring is unsubstituited or substituted by halogen, CF3, lower alkyl or lower alkoxy; R′ is hydrogen or lower alkyl; R″ is hydrogen, hydroxy or lower alkyl; n is 0, 1 or 2; m is 1, 2 or 3; and o is 1 or 2; and pharmaceutically acceptable acid addition salts thereof. This class of compounds have high affinity and selectivity for GABA A α5 receptor binding sites. Thus, the invention also relates to methods of enhancing cognition and treating cognitive disorders like Alzheimer's disease.
摘要:
The present invention is concerned with aryl-isoxazol-4-yl-imidazole derivatives of formula I: wherein R1 to R6 are as defined in the specification and pharmaceutically acceptable acid addition salts thereof. This class of compounds has high affinity and selectivity for GABA A α5 receptor binding sites and might be useful as cognitive enhancer or for the treatment of cognitive disorders like Alzheimer's disease.
摘要:
The present invention is concerned with aryl-4-ethynyl-isoxazole derivatives of formula I wherein R1 to R5 are as described in the specification and pharmaceutically acceptable salt thereof. This class of compounds has high affinity and selectivity for GABA A α5 receptor binding sites, being useful as a cognitive enhancer or for the treatment of cognitive disorders like Alzheimer's disease.
摘要:
The present invention is concerned with isoxazol-4-yl-oxadiazole derivatives of formula wherein R1, R2, and R3, are as defined in the specification and pharmaceutically acceptable acid addition salts thereof. This class of compounds has high affinity and selectivity for GABA A α5 receptor binding sites and might be useful as cognitive enhancer or for the treatment of cognitive disorders like Alzheimer's disease.
摘要:
The present invention is concerned with substituted imidazo[1,5-a][1,2,4]triazolo[1,5-d][1,4]benzodiazepine derivatives of formula I wherein R1 is hydrogen, halogen, lower alkyl, lower alkynyl, cycloalkyl, heterocycloalkyl, benzyl, cyano, lower alkoxy, OCF3, —NHR, —NHC(O)R or —NHSO2R; R2 is lower alkyl substituted by halogen; R3 is hydrogen, methyl or aryl; R is lower alkyl, cycloalkyl or aryl; and pharmaceutically acceptable acid addition salts thereof. Such compounds have a high affinity and selectivity for GABA A α5 receptor binding sites and might be useful as cognitive enhancer or for the treatment of cognitive disorders, anxiety, schizophrenia or Alzheimer's disease.
摘要翻译:本发明涉及式I的取代咪唑并[1,5-a] [1,2,4]三唑并[1,5-d] [1,4]苯并二氮杂衍生物,其中R 1, 氰基,低级烷氧基,OCF 3,-NHR,-NHC(O)R或-NHSO 2,其中R 1是氢,卤素,低级烷基,低级炔基,环烷基,杂环烷基, SUB> R R 2是被卤素取代的低级烷基; R 3是氢,甲基或芳基; R是低级烷基,环烷基或芳基; 及其药学上可接受的酸加成盐。 这样的化合物对GABA Aα5受体结合位点具有高亲和力和选择性,并且可用作认知增强剂或治疗认知障碍,焦虑,精神分裂症或阿尔茨海默病。
摘要:
The present invention is concerned with a method of treating a disease selected from the group consisting of cognitive disorders, anxiety, Alzheimer's disease, and schizophrenia comprising administering a therapeutically effective amount of a substituted imidazo[1,5-a][1,2,4]triazolo[1,5-d][1,4]benzodiazepine derivatives of the following formula wherein R1 is halogen, lower alkyl, lower alkynyl, cycloalkyl, lower alkoxy, OCF3, —NHR, —NHC(O)R or —NHSO2R; R2 is hydrogen, methyl or aryl which is unsubstituted or substituted by one or two substituents selected from the group consisting of halogen and lower alkoxy; R3 is hydrogen, lower alkyl, lower alkenyl, cycloalkyl, lower alkoxy, —O(CH2)n+1—O-lower alkyl, —(CH2)n-aryl which is optionally substituted by lower alkyl or halogen, heteroaryl, —NHR, —N(R)2, wherein each R can be the same or different, —NHCH2C≡CH, or pyrrolidin-1-one; R is hydrogen, lower alkyl, lower alkyl substituted by halogen, heteroaryl, —(CH2)nO-lower alkyl, —NH-lower alkyl, cycloalkyl or aryl, and n is 0, 1, 2 or 3; and with their pharmaceutically acceptable acid addition salts. The invention also provides novel compounds of formula I-A and pharmaceutical compositions containing them. The most preferred indication is Alzheimer's disease.