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:EP1295885A1
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, 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-pyridyl group optionally substituted by a C3-6 cycloalkyl group, a C1-4 alkyl group, a C1-4 alkoxy group, a benzyl group or a halogen atom;
when Y represents a bond, a methylene group optionally substituted , a hydroxyiminomethylene group, a dioxolan group or a carbonyl group then R2 represents 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 pyridyl ring, a pyrrole ring, a thiophene ring, a furan ring or an imidazole ring ;
when Y represents a ethenylene group, a ethynylene group, 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 hydroxy group, 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 C6,10 arylamino, 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, 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.
该发明涉及一种由式(I)表示的吡啶酮衍生物或其盐,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、一个乙烯基团、一个乙炔基团、一个氧原子、一个硫原子、一个磺酰基、一个亚砜基、一个羰基、一个羟亚胺亚甲基基团、一个二氧杜乐烷基团、一个氮原子(可选择地取代);或一个(可选择地取代的)亚甲基基团;R1代表一个2、3或4-吡啶基团,可选择地取代为一个C3-6环烷基团、一个C1-4烷基团、一个C1-4烷氧基团、一个苄基或一个卤原子;当Y代表一个键、一个(可选择地取代的)亚甲基基团、一个羟亚胺亚甲基基团、一个二氧杜乐烷基团或一个羰基时,R2代表一个(可选择地)C1-6烷基团;一个C3-6环烷基团、一个C1-4硫代烷基团、一个C1-4烷氧基团、一个C1-2全氟烷基团、一个C1-3卤代烷基团、一个苯硫基团、一个苄基、一个苯环、一个5,6,7,8-四氢萘基环、一个萘基环、一个吡啶基环、一个吡咯基环、一个噻吩基环、一个呋喃基环或一个咪唑基环;当Y代表一个乙烯基团、一个乙炔基团、一个氧原子、一个硫原子、一个磺酰基、一个亚砜基或一个(可选择地取代的)氮原子时,R2代表一个(可选择地取代的)C1-6烷基团,可选择地取代为一个羟基、一个C6,10芳氧基或一个C6,10芳基氨基;一个C3-6环烷基团、一个C1-2全氟烷基团、一个C1-3卤代烷基团、一个苄基、一个苯环、一个5,6,7,8-四氢萘基环、一个萘基环、一个C6,10芳基氨基、一个吡啶基环、一个吡咯基环、一个噻吩基环、一个呋喃基环或一个咪唑基环;R3和R4分别独立地代表一个氢原子、一个C1-6烷基团、一个羟基、一个C1-4烷氧基团或一个卤原子;R5代表一个氢原子、一个C1-6烷基团或一个卤原子;但是如果R3和R4分别代表一个氢原子,则R5不是一个氢原子;该发明还涉及一种药物,包括所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异常活性引起的神经退行性疾病,如阿尔茨海默病。