申请人:Pfizer Inc.
公开号:US05039682A1
公开(公告)日:1991-08-13
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.
本发明涉及新型的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。本发明还涉及化合物的制备、含有该化合物的抗菌组合物以及使用该化合物的方法。本发明还涉及一种新的过程,用于制备新型的N-环丙基中间体,该中间体对于制备本发明中含有1位环丙基取代基的1,7-二取代-6-氟-1,4-二氢喹啉-4-酮-3-羧酸衍生物以及其他含有环丙基取代基的1,4-二氢喹啉-4-酮-3-羧酸衍生物具有用处。