A 5-amino-8-methyl-7-pyrrolidinylquinoline-3-carboxylic acid derivative represented by the general formula:
wherein R¹ is a hydrogen atom or a lower alkyl group; R² is a hydrogen atom, a lower alkyl group, a lower alkanoyl group, a halogenated lower alkanoyl group or a residue of carboxylic acid ester; R³ is a hydrogen atom or a lower alkyl group; R⁴ , R⁵ or R⁶ are each independently a hydrogen atom or a lower alkyl group; or two of R⁴, R⁵ and R⁶ may be taken together to form a -(CH₂) n - group wherein n is 1 or 2,
a stereoisomer thereof, or a pharmacologically acceptable salt thereof, the process for preparing these compounds, a pharmaceutical composition comprising an effective amount of these compounds and methods for the treatment of infectious diseases through the administration to patients of an effective amount of these compounds, and intermediates of these compounds are disclosed.
These compounds are effective as antibacterial agents.
由通式代表的 5-
氨基-8-
甲基-7-
吡咯烷基
喹啉-3-羧酸衍
生物:
其中 R¹ 是
氢原子或低级烷基;R² 是
氢原子、低级烷基、低级烷酰基、卤代低级烷酰基或
羧酸酯残基;R³是
氢原子或低级烷基; R⁴、R⁵或 R⁶各自独立地是
氢原子或低级烷基;或 R⁴、R⁵和 R⁶中的两个可结合在一起形成-(CH₂) n-基团,其中 n 是 1 或 2、
公开了这些化合物的立体异构体或其药理学上可接受的盐、制备这些化合物的工艺、包含有效量这些化合物的药物组合物和通过向患者施用有效量这些化合物来治疗传染性疾病的方法,以及这些化合物的
中间体。
这些化合物是有效的抗菌剂。