Patent ID: 7671048

Claim:
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 of the formula I wherein R 1 is halogen, lower alkyl, lower alkynyl, cycloalkyl, lower alkoxy, OCF 3 , —NHR, —NHC(O)R or —NHSO 2 R; R 2 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; R 3 is lower alkenyl, cycloalkyl, —O(CH 2 ) n+1 —O-lower alkyl, —(CH 2 ) 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, —NHCH 2 C≡CH, or pyrrolidin-1-one; R is lower alkyl, lower alkyl substituted by halogen, heteroaryl, —(CH 2 ) n O-lower alkyl, —NH-lower alkyl, cycloalkyl or aryl, and n is 0, 1, 2 or 3; or a pharmaceutically acceptable acid addition salt thereof.