申请人:Wakunaga Seiyaku Kabushiki Kaisha
公开号:US05153203A1
公开(公告)日:1992-10-06
Antibacterial quinolone derivatives represented by the following formula and salts thereof are disclosed. ##STR1## wherein R.sup.1 meawns a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted lower alkenyl group or a substituted or unsubstituted phenyl group, R.sup.2 denotes a hydrogen atom or a carboxyl-protecting group, R.sup.3 represents a hydrogen or halogen atom or an amino, mono- or di-(lower alkyl)amino, hydroxyl or lower alkoxyl group, X is a hydrogen or halogen atom, Y means a nitrogen atom or a group C-R.sup.4 in which R.sup.4 is a hydrogen or halogen atom or a lower alkyl or lower alkoxyl group or is a group ##STR2## which forms a ring together with R.sup.1 (i.e., the asterisked carbon atoms are linked to the N(1) atom of the quinolone skeleton), and A denotes a specific N-containing group. Preparation processes of the quinolone derivatives and antibacterial agents containing the same are also disclosed.
抗菌喹诺酮衍生物及其盐的化学式如下所示。其中,R.sup.1表示取代或未取代的较低烷基基团,取代或未取代的环烷基基团,取代或未取代的较低烯基基团或取代或未取代的苯基基团,R.sup.2表示氢原子或羧基保护基团,R.sup.3表示氢或卤素原子或氨基、单或双-(较低烷基)氨基、羟基或较低烷氧基基团,X是氢或卤素原子,Y表示氮原子或C-R.sup.4基团,其中R.sup.4是氢或卤素原子或较低烷基或较低烷氧基团或是一个组合成环的基团,形成一个环与R.sup.1一起(即星号标记的碳原子与喹诺酮骨架的N(1)原子相连),A表示特定的含氮基团。还披露了喹诺酮衍生物的制备方法和含有它们的抗菌剂。