The present invention relates to a compound represented by the general formula [I]:
wherein A represents a nitrogen atom or a group represented by C-R5; Ar1 represents an aryl group which may have a substituent selected from the group consisting of a halogen atom and lower alkyl and lower haloalkyl groups; Ar2 represents an aryl or heteroaryl group which may have a substituent selected from the group consisting of a halogen atom and lower alkyl, lower alkenyl, lower haloalkyl, lower alkoxy, lower alkylthio, lower alkylamino, lower dialkylamino and aryl groups; R1 represents a hydrogen atom, a lower alkyl group or a bond formed by linking to R5; R2 represents a hydrogen atom or a lower alkyl group; R3 and R4 may be the same or different and each represents a hydrogen atom or a lower alkyl group, or R3 and R4 are linked to each other to form an alkylene group containing 2 to 4 carbon atoms which may have a lower alkyl group; and R5 represents a hydrogen atom or a hydroxyl, lower alkyl or lower alkoxy group or a bond formed by linking to R1,
or its salt, a process for its preparation and an agent for the treatment of bulimia, obesity or diabetes comprising it as an active ingredient.
本发明涉及通式[I]所代表的化合物:
其中A代表氮原子或由C-R5代表的基团;Ar1代表芳基,其取代基可选自卤素原子和低级烷基及低级卤代烷基组成的组;Ar2代表芳基或杂芳基,其取代基可选自卤素原子和低级烷基、低级烯基、低级卤代烷基、低级烷氧基、低级烷
硫基、低级烷基
氨基、低级二烷基
氨基和芳基组成的组;R1 代表氢原子、低级烷基或与 R5 连接形成的键;R2 代表氢原子或低级烷基;R3 和 R4 可以相同或不同,且各自代表氢原子或低级烷基,或 R3 和 R4 相互连接形成含 2 至 4 个碳原子的亚烷基,该亚烷基可能具有低级烷基;以及 R5 代表氢原子或羟基、低级烷基或低级烷氧基或与 R1 连接形成的键、
或其盐类,其制备方法和治疗贪食症、肥胖症或糖尿病的制剂,其活性成分包括它。