1-[alkyl],1-[(heteroaryl)alkyl] and 1-[aryl]alkyl]-7pyridinyl-imidazo[1,2-alpha]pyrimidin-5(1h)-one derivatives
申请人:——
公开号:US20040044010A1
公开(公告)日:2004-03-04
The invention relates to an imidazo[1,2-a]pyrimidone derivative represented by formula (1) or a salt thereof, wherein: X represents a bond, an ethenylene group, and ethenylene group, a methylene group optionally substituted by one or two groups selected from a C
1-6
alkyl group, a hydroxy group and a C
1-4
alkoxy group; a carbonyl group, an oxygen atom, a sulfur atom, a sulfonyl group, a sulfoxide group or a nitrogen atom being optionally substituted by a C
1-6
alkyl group; R1 represents a 2,3 or 4-pyridyl group optionally substituted by a C
1-4
alkyl group, C
1-4
alkoxy group or a halogen atom; R2 represents a C
1-4
alkyl group, perhalogenated alkyl group, a C
1-3
halogenated alkyl group, a benzyl group, a phenyl ring, a naphthyl ring, 5,6,7,8-tetrahydronaphthyl ring, a pyridyl ring, an indole ring, a pyrrole ring, a thiophene ring, a furan ring or an imidazole ring, the benzyl group and the rings being optionally substituted by 1 to 4 substituents selected from a C
1-4
alkyl group, a phenyl ring, a halogen atom, a C
1-2
perhalogenated alkyl group, a C
1-3
halogenated alkyl group, a hydroxyl group, a C
1-4
alkoxy group, a nitro, a cyano, an amino, a C
1-6
monoalkylamino group or a C
2-10
dialkylamino group; and n represents 0 to 3. 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 GSK3&bgr;, such as Alzheimer disease.
本发明涉及一种由式(1)表示的咪唑并[1,2-a]嘧啶酮衍生物或其盐,其中:X代表键,乙烯基,乙烯基,取代1个或2个选自C1-6烷基,羟基和C1-4烷氧基的基团的亚甲基基团,羰基基团,氧原子,硫原子,磺酰基,亚磺酰基或氮原子,可选地取代C1-6烷基;R1代表取代为C1-4烷基,C1-4烷氧基或卤素原子的2,3或4-吡啶基团;R2代表C1-4烷基,全卤代烷基,C1-3卤代烷基,苄基,苯环,萘环,5,6,7,8-四氢萘环,吡啶环,吲哚环,吡咯环,噻吩环,呋喃环或咪唑环,苄基和环可选地取代1至4个取自C1-4烷基,苯环,卤素原子,C1-2全卤代烷基,C1-3卤代烷基,羟基,C1-4烷氧基,硝基,氰基,氨基,C1-6单烷基氨基或C2-10二烷基氨基的取代基;n代表0至3。本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异常活性引起的神经退行性疾病,如阿尔茨海默病。