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    • 5. 发明授权
    • Quinolonecarboxylic acid derivatives and their preparation
    • 喹诺酮羧酸衍生物及其制备方法
    • US4894458A
    • 1990-01-16
    • US233363
    • 1988-08-18
    • Kuniyoshi MasuzawaSeigo SuzueKeiji HiraiTakayoshi Ishizaki
    • Kuniyoshi MasuzawaSeigo SuzueKeiji HiraiTakayoshi Ishizaki
    • A61K31/47A61K31/495A61K31/55A61P31/04C07D215/56C07D401/04
    • C07D215/56C07D401/04
    • Quinolonecarboxylic acid derivatives of the following formula, ##STR1## wherein R indicates straight or branched lower alkyl, R.sup.1 indicates cycloalkyl having 3 to 6 carbon atoms, straight or branched lower alkyl, halogenoalkyl, alkenyl, hydroxyalkyl, lower alkylamino or substituted or non-substituted phenyl, R.sup.2 indicates hydrogen, halogen, nitro or amino, X indicates halogen, Z indicates halogen, azetidino, pyrrolidino, piperidino, morpholino, thiomorpholino, piperazino or homopiperazino of the following formula, ##STR2## (here, n is 1 or 2, R.sup.3 indicates hydrogen, lower alkyl, lower acyl, acyloxycarbonyl or benzyl, R.sup.4 and R.sup.5 indicate hydrogen, lower alkyl, aminoalkyl, hydroxyalkyl or phenyl each independently), or pyrrolidino or piperidino of the following formula, ##STR3## (here, k is 0, 1 or 2, l is 0, 1 or 2, m is 0 or 1, R.sup.6 indicates hydrogen, lower alkyl or hydroxy, R.sup.7 indicates hydrogen, lower alkyl, halogenoalkyl or hydroxyalkyl, R.sup.8 indicates hydrogen, lower alkyl, lower acyl, alkoxycarbonyl or benzyl), the hydrates and pharmaceutically acceptable acid addition or alkali salts thereof are useful as antibacterial agents.
    • 下式的喹诺酮羧酸衍生物,其中R表示直链或支链的低级烷基,R1表示碳原子数为3〜6的环烷基,直链或支链的低级烷基,卤代烷基,链烯基,羟基烷基,低级烷基氨基或取代或未取代的 苯基,R 2表示氢,卤素,硝基或氨基,X表示卤素,Z表示卤素,氮杂环丁烷基,吡咯烷子基,哌啶子基,吗啉代,硫代吗啉代,哌嗪基或下式的高哌嗪基:(这里,n为1或2, R3表示氢,低级烷基,低级酰基,酰氧基羰基或苄基,R4和R5表示氢,低级烷基,氨基烷基,羟基烷基或苯基各自独立地),或下式的吡咯烷子基或哌啶子基,其中, ,1或2,l为0,1或2,m为0或1,R6表示氢,低级烷基或羟基,R7表示氢,低级烷基,卤代烷基或羟烷基,R8表示氢,低级烷基,低级酰基,烷氧基 羰基或苄基),其水合物及其药学上可接受的酸加成盐或碱盐可用作抗菌剂。