Process for the preparation of quinolonecarboxylic acid derivatives
申请人:KYORIN PHARMACEUTICAL CO., LTD.
公开号:EP0230946A2
公开(公告)日:1987-08-05
The present invention is concerned with certain novel process for the preparation of quinolonecarboxylic acid derivatives of the following formula,
wherein R¹ is a lower alkyl group, X is a chlorine or bromine atom and Y is a halogen atom, which are useful intermediates for the synthesis of antibacterial agents.
Benzoylacetic acid ester derivatives and process for their preparation
申请人:KYORIN PHARMACEUTICAL CO., LTD.
公开号:EP0230948A2
公开(公告)日:1987-08-05
The present invention is concerned with certain novel benzoylacetic acid ester derivatives (I) which are useful as a intermediates for synthesis of antibacterial agests.
wherein R is a lower alkyl group, X is a halogen atom and Y is a chlorine or bromine atom.
本发明涉及某些新型苯甲酰乙酸酯衍生物 (I),它们可用作合成抗菌剂的中间体。
其中 R 是低级烷基,X 是卤素原子,Y 是氯原子或溴原子。