申请人:TANABE SEIYAKU CO., LTD.
公开号:EP0572235A2
公开(公告)日:1993-12-01
Disclosed are a β-carboline derivative represented by the formula:
wherein R¹ represents hydrogen atom, a lower alkyl group, a lower alkoxy group or hydroxy group; R⁵ represents hydrogen atom, or R¹ and R⁵ are bonded to represent a lower alkylenedioxy group; R² represents hydrogen atom, a halogen atom, a lower alkoxy group or hydroxy group; R³ represents hydrogen atom, a carbamoyl lower alkyl group, a lower alkyl group, a carboxy lower alkyl group or a lower alkoxycarbonyl lower alkyl group; R⁴ represents hydrogen atom, a lower alkyl group, a carboxy lower alkyl group, a lower alkoxycarbonyl lower alkyl group, a lower alkanoyl group, an arylcarbonyl group, a lower alkanesulfonyl group, a lower alkoxycarbonyl group, an aralkyl group, formyl group or a di(lower alkyl)sulfamoyl group; n represents 0, 1 or 2; and the symbol * represents an asymmetric carbon atom,
or a pharmaceutically acceptable salt thereof,
and a process for preparing the same.
本发明公开了一种由式表示的 β-咔啉衍生物:
其中R¹代表氢原子、低级烷基、低级烷氧基或羟基;R⁵代表氢原子,或R¹和R⁵键合代表低级亚烷氧基;R²代表氢原子、卤素原子、低级烷氧基或羟基;R³代表氢原子、氨基甲酰基低级烷基、低级烷基、羧基低级烷基或低级烷氧基羰基低级烷基;R⁴ 代表氢原子、低级烷基、羧基低级烷基、低级烷氧基羰基低级烷基、低级烷酰基、芳基羰基、低级烷磺酰基、低级烷氧基羰基、芳基、甲酰基或二(低级烷基)氨基磺酰基;n 代表 0、1 或 2;符号 * 代表不对称碳原子、
或其药学上可接受的盐、
及其制备方法。