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.
具有新型抗菌活性的1-环丙基-1,4-二氢-4-氧基-7-[4-(2-氧代-1,3-二氧杂环-4-基甲基)-1-哌啶基]-3-喹啉羧酸的化合物,其化学式为:##STR1## 其中,R为氢或与R.sup.1一起形成具有2或3个碳原子的烷基基团,R.sup.1为氢,具有1至4个碳原子的烷基或苯基,R.sup.2和R.sup.3各自独立地为氢、甲基、乙基、环己基、亚甲二氧基苯基、呋喃基、四氢呋喃基或噻吩基;或者是苯基,其可以选择性地被氟、氯、溴、甲基、苯基、氰、羟基、乙氧基、苄氧基、氨基、甲氨基、二甲氨基、哌啶基或硝基单独、双重或三重取代。X.sup.1为氢、卤素或硝基,X.sup.2为氢或卤素,或其药学上可接受的水合物、酸加盐、碱金属盐或碱土金属盐。