Patent ID: 8802672

Claim:
A method of treating a condition selected from the group consisting of psychoses, drug abuse, cognitive impairment accompanying schizophrenia, mild-to-moderate cognitive deficits, dementia, attention deficit disorders, hyperactivity disorders, mania, bipolar disorder, paranoid and delusional disorders, Parkinson's disease, neuroleptic-induced parkinsonism, depression and depressive states, and autism, which comprises administering to a subject in need thereof an effective amount of a compound of formula (I) wherein Q represents C 1-4 alkyl, —NR 3 R 4 , phenyl, optionally substituted phenyl, 1-pyrrolidinyl, 1-piperidinyl, 4-R 5 -piperazin-1-yl or 4-morpholinyl group, R 1 represents hydrogen or C 1-4 alkyl group, R 2 represents hydrogen or C 1-4 alkyl group, R 3 represents hydrogen, C 1-4 alkyl group, phenyl or optionally substituted phenyl, R 4 represents hydrogen, C 1-4 alkyl group, phenyl or optionally substituted phenyl, R 5 represents hydrogen or C 1-4 alkyl group, and/or geometric isomers and/or stereoisomers and/or diastereomers and/or salts thereof.