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:EP1295884A1
公开(公告)日:2003-03-26
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, a an oxygen atom, a sulphur atom, a sulfonyl group, a sulfoxide group, a carbonyl group, a nitrogen atom being optionally substituted by a C1-6 alkyl group, a phenyl or a benzyl group; or a methylene group optionally substituted;
R1 represents a pyrimidine group;
when Y represents a bond, a methylene group optionally substituted or a carbonyl group then R2 represents a C1-6 alkyl group optionally substituted by a C6,10 aryloxy or a C6,10 arylamino group ; a C 3-6 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 pyridyl ring, a pyrrole ring, a thiophene ring, a furan ring or an imidazole ring ;
when Y represents a double bond, a triple bond, an oxygen atom, a sulphur atom, a sulfonyl group, a sulfoxyde group or a nitrogen atom being optionally substituted then R2 represents a C1-6 alkyl group (optionally substituted by a C6,10 aryloxy or a C6,10 arylamino group), a C3-6 cycloalkyl group, a C1-2 perhalogenated alkyl group, a C1-3 halogenated alkyl group, a benzyl group, a phenyl ring, a 5,6,7,8-tetrahydronaphthyl ring, a naphthyl ring, a pyridyl 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 C1-4 alkoxy 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.
本发明涉及一种由式(I)表示的嘧啶酮衍生物或其盐:
其中:
X代表两个氢原子、硫原子、氧原子或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、一个亚磺酸基、一个羰基、一个氮原子,该氮原子可选择地被C1-6烷基、苯基或苄基取代;或一个可选择地取代的亚甲基基团;
R1代表一个嘧啶基团;
当Y代表一个键、一个可选择地取代的亚甲基基团或一个羰基时,R2代表一个C1-6烷基,可选择地被C6,10芳氧基或C6,10芳基氨基基团取代;一个C3-6环烷基、一个C1-4烷基硫基、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;
当Y代表一个双键、一个三键、一个氧原子、一个硫原子、一个磺酰基、一个亚磺酸基或一个可选择地取代的氮原子时,R2代表一个C1-6烷基(可选择地被C6,10芳氧基或C6,10芳基氨基基团取代)、一个C3-6环烷基、一个C1-2全卤代烷基、一个C1-3卤代烷基、一个苄基、一个苯环、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各自独立地代表一个氢原子、C1-6烷基、一个羟基、一个C1-4烷氧基或一个卤原子;
R5代表一个氢原子、一个C1-6烷基或一个卤原子;
本发明还涉及一种药物,该药物包括上述衍生物或其盐作为活性成分,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,例如阿尔茨海默病。