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:Gallet Thierry
公开号:US20050049261A1
公开(公告)日:2005-03-03
The invention relates to a pyrimidone derivative represented by formula (I) or a salt thereof wherein X represents two hydrogen atoms, a sulfur atom, an oxygen atom or a C
1-2
alkyl group and a hydrogen atom; Y represents a bond, an ethenylene group, an ethynylene group an oxygen atom, a sulfur 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; or a methylene group optionally substituted; R1 represents a 2, 3 or 4-pyridine ring optionally substituted; R2 may represent a C
1-6
alkyl group optionally; a C
3-6
cycloalkyl group, a C
1-4
alkythio group, a C
1-4
alkoxy group, a C
1-2
perhalogenated alkyl group, a C
1-3
halogenated alkyl group, a phenylthio group, a benzyl group, a benzene ring, an indan ring, a 5,6,7,8-tetrahydronaphthalene ring, a naphthalene ring, a pyridine ring, a pyrrole ring, a thiophene ring, a furan ring or an imidazole ring; R3 and R4 represent, each independently, a hydrogen atom, a C
1-6
alkyl group, a hydroxy group, a C
1-4
alkoxy group or a halogen atom; R5 represents a hydrogen atom, a C
1-6
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)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烷基基团和一个氢原子;Y代表键,乙烯基团,乙炔基团,氧原子,硫原子,磺酰基,亚磺酸基,羰基,羟亚胺亚甲基基团,二氧杂环己烷基团,氮原子可选地取代;或取代的亚甲基基团;R1表示可选地取代的2、3或4-吡啶环;R2可以表示可选的C1-6烷基基团;C3-6环烷基团,C1-4烷硫基团,C1-4烷氧基团,C1-2全氟烷基团,C1-3卤代烷基团,苯硫基团,苯甲基基团,苯环,茚环,5,6,7,8-四氢萘环,萘环,吡啶环,吡咯环,噻吩环,呋喃环或咪唑环;R3和R4分别表示氢原子,C1-6烷基基团,羟基,C1-4烷氧基团或卤素原子;R5表示氢原子,C1-6烷基基团或卤素原子;但是当R3和R4分别表示氢原子时,R5不是氢原子。本发明还涉及一种药物,其包含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的异常活动引起的神经退行性疾病,如阿尔茨海默病。