A pyrimidone derivative represented by formula (I) or a salt thereof:
wherein R1 represents
* a C6,10 aryl group,
* a heterocyclic ring having 1-4 hetero atoms selected from oxygen atom, sulfur atom, and nitrogen atom, and having total ring-constituting atoms of 5-10, or
* a C1-6 alkyl group substituted by one C6,10 aryl group,
the C6,10 aryl groups and heterocyclic ring being optionally substituted by 1 to 3 substituents selected from a C1-6 alkyl group, halogen atom, a C1-2 perhalogenated alkyl group, a C1-3 halogenated alkyl group, a hydroxyl group, a C1-6 alkoxy group, methylenedioxy group, a nitro, a cyano or a phenyl group;
R2 represents a 2, 3 or 4-pyridyl group optionally substituted by a C1-2 alkyl, group, C1-2 alkoxy group or a halogen atom; and
n represents 1 or 2.
And 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 GSK3β such as Alzheimer's disease, Parkinson's disease, frontoparietal dementia, corticobasal degeneration, Pick's disease, cerebrovascular accidents, brain and spinal trauma, and peripheral neuropathies.
一种由公式(I)表示的
嘧啶酮衍
生物或其盐:其中R1代表*一个C6,10芳基团,*一个含有1-4个氧原子、
硫原子和氮原子的杂环环,总环构成原子为5-10,或*一个C1-6烷基基团,被一个C6,10芳基团取代,这些C6,10芳基团和杂环环可以选择性地被1到3个来自C1-6烷基基团、卤素原子、C1-2
全氟烷基基团、C1-3卤代烷基基团、羟基、C1-6烷氧基、亚甲二氧基基团、硝基、
氰基或苯基的取代基取代;R2代表一个2、3或4-
吡啶基团,可以选择性地被一个C1-2烷基基团、C1-2烷氧基团或一个卤素原子取代;n代表1或2。以及一种包含所述衍
生物或其盐作为活性成分的药物,用于预防和/或治疗由GSK3β异常活性引起的神经退行性疾病,如阿尔茨海默病、帕
金森病、额顶叶痴呆、皮质基底节变性、皮克氏病、脑血管意外、脑脊髓创伤和周围神经病变。