Substituted 2-pyrimidinyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one and 7-pyrimidinyl-2,3-dihydroimidazo[1,2-a]pyrimidin-5(1H)one derivatives
申请人:SANOFI-SYNTHELABO
公开号:EP1340760A1
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, a ethenylene group, a ethynylene group, an oxygen atom, a sulphur atom, a sulfonyl group, a sulfoxide group, a carbonyl group, a nitrogen atom being optionally; or a methylene group optionally substituted;
R1 represents a pyrimidine group optionally substituted;
R2 may represent a C1-6 alkyl group optionally substituted by a C6,10 aryloxy or a C6,10 arylamino group ; a C3-6 cycloalkyl group, a C1-4alkylthio group, a C1-4alkoxy group, a C1-2 perhalogenated alkyl group, a C1-3 halogenated alkyl group, a phenylthio group, a benzyl group, a phenyl ring, an indanyl 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, C1-6 alkyl group, a hydroxy group, a C1-4alkoxy group or a halogen atom;
R5 represents a hydrogen atom, a C1-6 alkyl group or a halogen 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.
本发明涉及式 (I) 所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 代表一个键、一个乙烯基、一个乙炔基、一个氧原子、一个硫原子、一个磺酰基、一个亚砜基、一个羰基、一个任选被取代的氮原子或一个任选被取代的亚甲基;
R1 代表任选被取代的嘧啶基团;
R2 可代表被 C6,10 芳氧基或 C6,10 芳酰胺基任选取代的 C1-6 烷基;C3-6环烷基、C1-4烷硫基、C1-4烷氧基、C1-2过卤代烷基、C1-3卤代烷基、苯硫基、苄基、苯基环、茚基环、5,6,7,8-四氢萘环、萘基环、吡啶环、吡咯环、噻吩环、呋喃环或咪唑环;
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 活性异常引起的神经退行性疾病,如阿尔茨海默病。