申请人:Bayer Aktiengesellschaft
公开号:US04599334A1
公开(公告)日:1986-07-08
Novel 1-cyclopropyl-4-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinolinecarb oxylic acid antibacterials of the formula ##STR1## in which R.sup.1 is hydrogen, alkyl with 1 to 4 carbon atoms and optionally substituted by hydroxyl, methoxy, amino, dimethylamino, halogen, cyano or alkoxycarbonyl having 1 or 2 carbon atoms in the alkyl moiety, or is oxoalkyl having up to 4 carbon atoms, phenacyl, or acyl having 1 to 4 carbon atoms, phenacyl, or acyl having 1 to 4 carbon atoms, R.sup.2 is phenyl or cyclohexyl optionally substituted up to three times by halogen, methyl, phenyl, cyano, hydroxyl, methoxy, benzyloxy, amino, methylamino, dimethylamino, piperidino or nitro, or is methylenedioxyphenyl, methylenedioxycyclohexyl, furyl, tetrahydrofuryl or thienyl, and X.sup.1 is hydrogen or fluorine, or pharmaceutically ultizable hydrates, acid addition salts, alkali metal salts or alkaline earth metal salts thereof.
1-环丙基-4-氟-1,4-二氢-4-氧代-7-(1-哌嗪基)-3-喹啉羧酸抗菌剂的分子式为##STR1##其中R.sup.1是氢、1至4个碳原子的烷基,可选择性地被羟基、甲氧基、氨基、二甲胺基、卤素、氰基或烷氧羰基取代,烷基部分含有1或2个碳原子,或者是含有最多4个碳原子的氧代烷基、苯乙酰基或含有1至4个碳原子的酰基,R.sup.2是苯基或环己基,可选择性地被卤素、甲基、苯基、氰基、羟基、甲氧基、苄氧基、氨基、甲基氨基、二甲胺基、哌啶基或硝基取代,或者是亚甲二氧基苯基、亚甲二氧基环己基、呋喃基、四氢呋喃基或噻吩基,X.sup.1是氢或氟,或其药用水合物、酸盐、碱金属盐或碱土金属盐。