申请人:SANOFI-SYNTHELABO
公开号:EP1136485A1
公开(公告)日:2001-09-26
The invention relates to a pyrimidone derivative represented by formula (I) or a salts thereof:
wherein:
n is 0 or 1,
W represents a bond, a carbonyl group -C(O)- or a a sulfonyl group -S(O)2-;
* When W represents a carbonyl group -C(O)- then R1 represents a hydrogen atom, a C1-6 alkyl group which may be substituted, a C6,10 aryl group which may be substituted or a heterocyclic ring having 1-4 hetero atoms selected from oxygen atom, sulfur atom, and nitrogen atom, having total ring-constituting atoms of 5-10 and being optionally substituted,
* When W represents a sulfonyl group -S(O)2-, R1 represents a C1-6 alkyl group which may be substituted, a C6,10 aryl group which may be substituted or a heterocyclic ring having 1-4 hetero atoms selected from oxygen atom, sulfur atom, and nitrogen atom, having total ring-constituting atoms of 5-10 and being optionally substituted;
* When W represents a bond then n is 0 and R1 represents a hydrogen atom or a C1-6 alkyl group,
R2 represents a hydrogen atom or a C1-6 alkyl group which may be substituted by an optionally substituted phenyl group; and
R3 represents a pyridyl ring optionally substituted by a C1-4 alkyl group, C1-4 alkoxy 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, such as Alzheimer's disease, Parkinson's disease, frontoparietal dementia, corticobasal degeneration, Pick's disease, cerebrovascular accidents, brain and spinal trauma, and peripheral neuropathies.
该发明涉及一种由式(I)表示的嘧啶酮衍生物或其盐:其中:n为0或1,W代表键合,羰基-C(O)-或磺酰基-S(O)2-;* 当W代表羰基-C(O)-时,R1表示氢原子,可能被取代的C1-6烷基,可能被取代的C6,10芳基或具有1-4个异原子(氧原子、硫原子和氮原子)的杂环环,总环构成原子数为5-10且可选地取代;* 当W代表磺酰基-S(O)2-时,R1表示可能被取代的C1-6烷基,可能被取代的C6,10芳基或具有1-4个异原子(氧原子、硫原子和氮原子)的杂环环,总环构成原子数为5-10且可选地取代;* 当W代表键合时,n为0且R1表示氢原子或C1-6烷基,R2表示氢原子或可能被可选取代的苯基取代的C1-6烷基;R3表示可能被C1-4烷基,C1-4烷氧基或卤原子取代的吡啶环。该发明还涉及一种包含所述衍生物或其盐作为活性成分的药物,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、帕金森病、额顶痴呆、皮克病、脑血管意外、脑脊髓创伤和周围神经病变。