1-Substituted-6-fluoro-5-methyl-7-(piperazinyl or pyrrolidinyl)-1,4-dihydro-4-oxoquinoline-3-carboxylic acids (I) and processes for preparation thereof. The acids are used for treatment of a bacterial infectious desease.
1-取代-6-
氟-5-甲基-7-(
哌嗪基或
吡咯烷基)-1,4-二氢-4-氧代
喹啉-3-羧酸 (I) 及其制备方法。这些酸可用于治疗细菌性传染病。