申请人:Bayer Aktiengesellschaft
公开号:US04703047A1
公开(公告)日:1987-10-27
Novel antibacterially active 1-cyclopropyl-1,4-dihydro-4-oxo-7-[4-(2-oxo-1,3-dioxol-4-yl-methyl)-1-pipe razinyl]-3-quinolinecarboxyic acids of the formula in which ##STR1## R is hydrogen or, together with R.sup.1, forms an alkylene radical with 2 or 3 carbon atoms, R.sup.1 is hydrogen, alkyl with 1 to 4 carbon atom or phenyl, R.sup.2 and R.sup.3 each independently is hydrogen, methyl, ethyl, cyclohexyl, methylene-dioxphenyl, furyl, tetrahydrofuryl or thienyl; or phenyl which is optionally mono-, di or tri-substituted by fluorine, chlorine, bromine, methyl, phenyl, cyano, hydroxyl, ethoxy, benzyloxy, amino, methylamino, dimethylamino, piperidino or nitro, X.sup.1 is hydrogen, halogen, or nitro, and X.sup.2 is hydrogen or halogen, or pharmaceutically acceptable hydrates, acid addition salts, alkali metal salts or alkaline earth metal salts thereof.
新型具有抗菌活性的1-环丙基-1,4-二氢-4-氧基-7-[4-(2-氧代-1,3-二氧杂环丁基)-1-哌啶基]-3-喹啉羧酸的化学式如下:其中R为氢原子,或者与R.sup.1一起形成含有2或3个碳原子的烷基基团,R.sup.1为氢原子,含有1至4个碳原子的烷基或苯基,R.sup.2和R.sup.3分别独立地为氢、甲基、乙基、环己基、亚甲二氧苯基、呋喃基、四氢呋喃基或噻吩基;或者为苯基,该苯基可选择性地经氟、氯、溴、甲基、苯基、氰基、羟基、乙氧基、苄氧基、氨基、甲氨基、二甲胺基、哌啶基或硝基的单取代、双取代或三取代,X.sup.1为氢、卤素或硝基,X.sup.2为氢或卤素;或者其药学上可接受的水合物、酸盐、碱金属盐或碱土金属盐。