NOVEL PYRIDONECARBOXYLATE DERIVATIVE OR SALT THEREOF AND ANTIBACTERIAL CONTAINING THE SAME AS ACTIVE INGREDIENT
申请人:WAKUNAGA SEIYAKU KABUSHIKI KAISHA
公开号:EP0787720A1
公开(公告)日:1997-08-06
The invention provides a pyridonecarboxylic acid derivative of the following general formula (1):
wherein R1 is a hydrogen atom or carboxy protecting group, R2 is a nitro or substituted or unsubstituted amino group, R3 is a halogen atom, each of R4 and R5, which may be the same or different, is a hydrogen atom, halogen atom, lower alkyl group or lower alkoxy group, A is a nitrogen atom or - CX= wherein X is a hydrogen atom, halogen atom, lower alkyl group or lower alkoxy group, and Z is a halogen atom or a saturated cyclic amino group which may have a substituent, or a salt thereof and an antibacterial agent comprising the same.
本发明提供了以下通式(1)的吡啶甲酸衍生物:
其中 R1 是氢原子或羧基保护基团,R2 是硝基或取代或未取代的氨基,R3 是卤素原子,R4 和 R5(可以相同或不同)各自是氢原子、卤素原子、低级烷基或低级烷氧基,A 是氮原子或 - CX= 其中 X 是氢原子、卤素原子、低级烷基或低级烷氧基,Z 是卤素原子或饱和环状氨基(可以有取代基),或其盐以及由其组成的抗菌剂。