The present invention relates to new 1-substituted derivatives of 6-fluoro-7-(pyrrol-1-yl)-1,4-dihydro-4-oxoquinoline-3-carboxylic acid, their preparation and their application as drugs. The 1-substituted derivatives of 6-fluoro-7-(pyrrol-1-yl)-1,4-dihydro-4-oxoquinoline-3-carboxylic acid according to the invention correspond to the general formula I: ##STR1## in which: R represents a methyl radical, a 2-hydroxyethyl radical, a vinyl radical, a cyclopropylmethyl radical, a propyl radical, a cyclopropyl radical, a 2-fluoroethyl radical, a methylamino radical or an ethylamino radical, as well as their physiologically acceptable alkali metal or alkaline earth metal salts. They are useful as antimicrobial agents, in particular as antibacterial and fungistatic agents.
本发明涉及6-
氟-7-(
吡咯-1-基)-1,4-二氢-4-氧
喹啉-3-羧酸的新1-取代衍
生物,其制备以及作为药物的应用。根据本发明,6-
氟-7-(
吡咯-1-基)-1,4-二氢-4-氧
喹啉-3-羧酸的1-取代衍
生物符合一般式I:##STR1## 其中:R代表甲基基团、2-羟乙基基团、
乙烯基基团、
环丙基甲基基团、丙基基团、环丙基基团、2-
氟乙基基团、甲
氨基基团或乙
氨基基团,以及它们的生理上可接受的碱
金属或碱土
金属盐。它们可用作抗微
生物剂,特别是作为抗菌和真菌静菌剂。