| abstract |
The invention relates to therapeutic uses of a pyrimidone derivative represented by formula (I) or a salt thereof: n n n n n n n n n n Wherein X, Y, R1, R2, m and n are as defined herein. Specifically, a medicament comprising the said derivative or a salt thereof as an active ingredient is used for preventive and/or therapeutic treatment of a neurodegenerative diseases caused by abnormal activity of GSK3β such as Alzheimer's disease. |