申请人:Kyorin Pharameuticals Co., Ltd.
公开号:US06001862A1
公开(公告)日:1999-12-14
The present invention provides novel N-benzyldioxothiazolidylbenzamide derivatives that improve the insulin resistance and have potent hypoglycemic and lipid-lowering effects and processes for preparing the same, and relates to N-benzyldioxothiazolidylbenzamide derivatives characterized by being represented by a general formula (1) ##STR1## [wherein R.sup.1 and R.sup.2 denote identically or differently hydrogen atoms, lower alkyl groups with carbon atoms of 1 to 4, lower alkoxy groups with carbon atoms of 1 to 3, lower haloalkyl groups with carbon atoms of 1 to 3, lower haloalkoxy groups with carbon atoms of 1 to 3, halogen atoms, hydroxyl groups, nitro groups, amino groups which may be substituted with lower alkyl group(s) with carbon atoms of 1 to 3 or hetero rings, or R.sup.1 and R.sup.2 link to form a methylenedioxy group, R.sup.3 denotes a lower alkoxy group with carbon atoms of 1 to 3, hydroxyl group or halogen atom, and dotted line indicates double bond or single bond in combination with solid line], and processes for preparing the same.
本发明提供了新型N-苄基二氧噻唑基苯甲酰胺衍生物,其改善胰岛素抵抗并具有强效的降血糖和降脂作用,并提供了制备它们的方法。涉及到的N-苄基二氧噻唑基苯甲酰胺衍生物的特征在于由通式(1)表示:
其中R^1和R^2表示相同或不同的氢原子,具有1到4个碳原子的低碳基,具有1到3个碳原子的低碳氧基,具有1到3个碳原子的低卤代烷基,具有1到3个碳原子的低卤代氧基,卤素原子,羟基,硝基,氨基(可以用具有1到3个碳原子的低碳基或杂环代替的氨基),或R^1和R^2连接形成亚甲二氧基基团,R^3表示具有1到3个碳原子的低碳氧基,羟基或卤素原子,虚线表示双键或与实线结合的单键。同时还提供了制备它们的方法。