A pyrimidone derivative having tau protein kinase 1 inhibitory activity which is represented by formula (I) or a salt thereof, or a solvate thereof or a hydrate thereof; useful for prventive and/or therapeutic treatment of diseass such as neurodegenerative diseases (e.g. Alzheimer disease); wherein Q represents CH or nitrogen atom; R represents a C
1
-C
12
alkyl group; the ring of Formula (I): represents piperazine ring or piperidine ring; each X independently represents a C
1
-C
8
alkyl group, an optionally partially hydrogenated C
6
-C
10
aryl ring, an indan ring or the like; m represents an integer of 1 to 3; each independently represents a halogen atom, a hydroxy group, a cyano group, a C
1
-C
6
alkyl group or the like; n represents an integer of 0 to 8; when X and Y or two Y groups are attached on the same carbon atom, they may combine to each other to form a C
2
-C
6
alkylene group.
具有tau蛋白激酶1抑制活性的
嘧啶酮衍
生物,其由式(I)或其盐、溶剂化物或
水合物表示; 用于预防和/或治疗神经退行性疾病(例如阿尔茨海默病)等疾病; 其中Q表示CH或
氮原子; R表示C1-C12烷基; 公式(I)的环表示
哌嗪环或
哌啶环; 每个X独立地表示C1-C8烷基,可选部分
氢化的C6-C10芳环,
茚环或类似物; m表示1至3的整数; 每个独立地表示卤素原子,羟基,
氰基,C1-C6烷基或类似物; n表示0至8的整数; 当X和Y或两个Y基附着在同一
碳原子上时,它们可以结合形成C2-C6烷基lene基团。