6-Fluoro-1,4-dihydroquinol-4-one-3-carboxylic acid derivatives and intermediates therefor
申请人:PFIZER INC.
公开号:EP0348088A1
公开(公告)日:1989-12-27
This invention relates to novel 1,7-disubstituted-6-fluoro-1,4-dihydroquinol-4-one-3-carboxylic acid derivatives and certain esters and cation salts thereof. This invention further relates to preparation of the compounds, antibacterial compositions containing the compounds and methods of using the compounds.
This invention also relates to a novel process for preparing novel N-cyclopropyl intermediates useful for preparing certain of the 1,7-disubstituted-6-fluoro-1,4-dihydroquinol-4-one-3-carboxylic acid derivatives of this invention which contain a cyclopropyl substituent at the 1 position as well as other 1,4-dihydroquinol-4-one-3-carboxylic acid derivatives so substituted with cyclopropyl.
本发明涉及新型 1,7-二取代-6-氟-1,4-二氢喹啉-4-酮-3-羧酸衍生物及其某些酯和阳离子盐。本发明还涉及这些化合物的制备、含有这些化合物的抗菌组合物以及使用这些化合物的方法。
本发明还涉及一种制备新型N-环丙基中间体的新工艺,该中间体可用于制备本发明的某些1,7-二取代-6-氟-1,4-二氢喹啉-4-酮-3-羧酸衍生物,该衍生物在1位上含有环丙基取代基,以及其他被环丙基取代的1,4-二氢喹啉-4-酮-3-羧酸衍生物。