| abstract |
A pyrimidone derivative represented by formula (I) or a salt thereof, or a solvate thereof or a hydrate thereof: wherein: Y represents two hydrogen atoms, a sulfur atom, an oxygen atom or a C1-2 alkyl group and a hydrogen atom; Z represents a bond, an oxygen atom, a nitrogen atom substituted by a hydrogen atom or a C1-3 alkyl group, a sulphur atom, a methylene group optionally substituted; R1 represents a 2, 3 or 4-pyridine ring or a 2, 4 or 5-pyrimidine ring, the ring being optionally substituted; R2 represents a benzene ring or a naphthalene ring; the rings being optionally substituted; R3 represents a hydrogen atom, a C1-6 alkyl group or a halogen atom; R4 represents a hydrogen atom or a C-1-6 alkyl group; R5 represents a hydrogen atom, a C1-6 alkyl group optionally substituted; R6 represents a hydrogen atom, a C1-6 alkyl group or a halogen atom; R7 represents a hydrogen atom or a C1-6 alkyl group; n represents 0 to 3; m represents 0 to 1; o represents 0 to 2. The invention relates also to a medicament comprising the said derivative or a salt thereof as an active ingredient which is used for preventive and/or therapeutic treatment of a neurodegenerative disease caused by abnormal activity of GSK3ss, such as Alzheimer disease. |