Substituted 2-pyridinyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one and 7-pyridinyl-2,3-dihydroimidazo[1,2-a]pyrimidin-5(1H)one derivatives
申请人:SANOFI-SYNTHELABO
公开号:EP1340761A1
公开(公告)日:2003-09-03
The invention relates to a pyrimidone derivative represented by formula (I) or a salt thereof wherein:
X represents two hydrogen atoms, a sulphur atom, an oxygen atom or a C1-2 alkyl group and a hydrogen atom;
Y represents a bond, an ethenylene group, an ethynylene group, an oxygen atom, a sulphur atom, a sulfonyl group, a sulfoxide group, a carbonyl group, a hydroxyiminomethylene group, a dioxolan group, a nitrogen atom being optionally substituted; or a methylene group optionally substituted;
R1 represents a 2, 3 or 4-pyridine ring optionally substituted;
R2 may represent a C1-6 alkyl group optionally; a C3-6 cycloalkyl group, a C1-4 alkylthio group, a C1-4 alkoxy group, a C1-2 perhalogenated alkyl group, a C1-3 halogenated alkyl group, a phenylthio group, a benzyl group, a phenyl ring, a 5,6,7,8-tetrahydronaphthyl ring, a naphthyl ring, a pyridine ring, a pyrrole ring, a thiophene ring, a furan ring or an imidazole ring ;
R3 and R4 represents, each independently, a hydrogen atom, a C1-6 alkyl group, a hydroxy group, a C1-4 alkoxy group or a halogen atom;
R5 represents a hydrogen atom, a C1-6 alkyl group or a halogen atom; with the proviso that when R3 and R4 represent each a hydrogen atom then R5 is not a hydrogen atom.
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 GSK3β or GSk3β and cdk5/p25, such as Alzheimer disease.
本发明涉及一种由式(I)代表的
嘧啶酮衍
生物或其盐,其中:
X 代表两个氢原子、一个
硫原子、一个氧原子或一个 C1-2 烷基和一个氢原子;
Y 代表键、
乙烯基、
乙炔基、氧原子、
硫原子、磺酰基、亚砜基、羰基、羟基亚
氨基亚甲基、二
氧戊环基、任选取代的氮原子或任选取代的亚甲基;
R1 代表任选被取代的 2、3 或 4
吡啶环;
R2 可任选代表一个 C1-6 烷基、一个 C3-6 环烷基、一个 C1-4 烷
硫基、一个 C1-4 烷氧基、一个 C1-2 全卤代烷基、一个 C1-3 卤代烷基、一个苯
硫基、一个苄基、一个苯基环、一个 5,6,7,8-四氢
萘环、一个
萘环、一个
吡啶环、一个
吡咯环、一个
噻吩环、一个
呋喃环或一个
咪唑环;
R3 和 R4 各自独立地代表氢原子、C1-6 烷基、羟基、C1-4 烷氧基或卤素原子;
R5 代表氢原子、C1-6 烷基或卤素原子;但当 R3 和 R4 各自代表氢原子时,R5 不是氢原子。
本发明还涉及一种包含上述衍
生物或其盐作为活性成分的药物,该药物用于预防和/或治疗由 GSK3β 或 GSk3β 和 cdk5/p25 的异常活性引起的神经退行性疾病,如阿尔茨海默病。