| 摘要 |
<p>A pyrimidone derivative represented by formula (I) or a salt thereof: wherein: Y represents two hydrogen atoms, a sulphur atom, an oxygen atom; R1 represents a 2, 3 or 4-pyridine ring or a 2, 4 or 5-pyrimidine ring, the ring being optionally substituted by a C1-6 alkyl group, a C1-6 alkoxy group or a halogen atom; R2 represents a hydrogen atom, a C1-6 alkyl group or a halogen atom; R3 represents a phenyl-group, a phenyl-CH2- group, a C1-6 alkyl-O-C(O)- group, a phenyl-C(O)- group, a 5-10 membered heterocyclic group, a phenyl-CH2-O-C(O)- group, a -C(O)-5-10 membered heterocyclic group, these groups being optionnally substituted by 1 to 4 substituents selected from a C1-6 alkyl group, a halogen atom, a C1-2 perhalogenated alkyl group, a C1-3 halogenated alkyl group, a hydroxyl group, a C1-6 alkoxy group, a C1-2 perhalogenated alkoxy group, a C1-6 alkylsulfonyl group, a nitro, a cyano, an amino, a C1-6 monoalkylamino group or a C2-12 dialkylamino-group, an acetoxy group, an aminosulfonyl group; R4 represents a hydrogen atom, a halogen atom, a hydroxyl group, a C1-6 alkyl group; m represents 0 to 2, in the form of a free base or of an addition salt with an acid.</p> |
