| abstract |
Disclosed is a compound useful as an active ingredient of a medicament for preventive and / or therapeutic treatment of diseases such as Alzheimer's disease. A pyrimidone derivative represented by the general formula (I) or a pharmaceutically acceptable salt thereof. [Chemical 1] [Wherein X represents a hydrogen atom, Y represents a hydroxyl group, R 1 represents a C 1-6 alkyl group, and R 2 represents an optionally substituted morpholin-4-yl group]. [Selection figure] None |