申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:US04894458A1
公开(公告)日:1990-01-16
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.
下列化合物的喹诺酸衍生物,其中R表示直链或支链低碳基,R.sup.1表示具有3到6个碳原子的环烷基,直链或支链低碳基,卤代烷基,烯基,羟基烷基,低碳基氨基或取代或非取代苯基,R.sup.2表示氢,卤素,硝基或氨基,X表示卤素,Z表示卤素,氮杂环丙基,吡咯烷基,哌啶基,吗啉基,硫代吗啉基,哌嗪基或同型哌嗪,具有以下公式,##STR2##(这里,n为1或2,R.sup.3表示氢,低碳基,低酰基,酰氧羰基或苄基,R.sup.4和R.sup.5各自独立表示氢,低碳基,氨基烷基,羟基烷基或苯基),或具有以下公式的吡咯烷基或哌啶基,##STR3##(这里,k为0,1或2,l为0,1或2,m为0或1,R.sup.6表示氢,低碳基或羟基,R.sup.7表示氢,低碳基,卤代烷基或羟基烷基,R.sup.8表示氢,低碳基,低酰基,烷氧羰基或苄基),其水合物和药学上可接受的酸加成物或碱盐作为抗菌剂有用。