Patent ID: 8288399

Claim:
A method for the treatment of central diseases selected from the group consisting of Alzheimer's disease, Parkinson's disease, Huntington's chorea, and Pick's disease, comprising administering to a patient in need thereof a compound represented by general formula (I) below, or a pharmacologically acceptable salt thereof wherein: R 1 represents a hydrogen atom; R 2 represents a hydrogen atom, a C 1 -C 6 alkyl group or C 3 -C 6 cycloalkyl group; A represents a nitrogen atom; D represents a methylene group, a methyl methylene group, a halogen atom substituted methylene group or a halogen substituted methyl methylene group; E represents a group of formula CH 2 , a group of formula CHR 3 wherein R 3 represents a C 1 -C 6 alkyl group, a group of formula CH or a carbon atom substituted by a C 1 -C 6 alkyl group; Arom represents an aryl group, an aryl group having from 1 to 3 identical or different substituent groups selected from the group consisting of halogen atoms, C 1 -C 6 alkyl groups, and C 1 -C 6 alkyloxy groups, a heteroaryl group or a heteroaryl group having from 1 to 3 substituent groups, selected from the group consisting of halogen atoms, C 1 -C 6 alkyl groups, and C 1 -C 6 alkyloxy groups; and the part represented by is a single bond or double bond.