申请人:Wakunaga Seiyaku Kabushiki Kaisha
公开号:US05412098A1
公开(公告)日:1995-05-02
A quinolone derivative represented by the below-described formula (1), or a salt thereof: ##STR1## wherein R.sup.1 represents a hydrogen atom, or a carboxyl protective group, R.sup.2 represents a hydrogen atom, halogen atom or a lower alkyl group, X represents a hydrogen atom or a halogen atom, Y represents a halogen atom, a cyclic amino group which may have a substituent, a cyclo- lower alkenyl group which may have a substituent, or a group R.sup.3 --(CH.sub.2).sub.m --A-- (wherein R.sup.3 represents a hydrogen atom or an amino group which may have a substituent, A represents an oxygen atom or a sulfur atom and m represents a number of 0 to 3), Z represents a nitrogen atom or a group C--R.sup.4 (wherein R.sup.4 represents a hydrogen atom or a halogen atom), W represents a five-membered heterocyclic group which may have a substituent and which has 3 or more hetero-atoms, among which at least 2 hetero-atoms are nitrogen atoms, and n represents a number of 0 to 2; and an antibacterial agent containing the compounds. Since the above-mentioned compounds exhibit excellent antibacterial activities and are highly safe, they are useful as pharmaceuticals for the human and animals, medicines for fishes, pesticides, preservatives for foods, and the like.
以下式(1)表示的喹诺酮衍生物,或其盐:STR1## 其中,R.sup.1表示氢原子或羧酸保护基团,R.sup.2表示氢原子、卤素原子或低级烷基,X表示氢原子或卤素原子,Y表示卤素原子、可能带有取代基的环状氨基、可能带有取代基的环状低级烯基或R.sup.3--(CH.sub.2).sub.m --A-- (其中R.sup.3表示氢原子或可能带有取代基的氨基,A表示氧原子或硫原子,m表示0到3的数字),Z表示氮原子或C--R.sup.4基团(其中R.sup.4表示氢原子或卤素原子),W表示可能带有取代基的五元杂环基团,该基团含有3个或更多个杂原子,其中至少2个是氮原子,n表示0到2的数字;以及含有这些化合物的抗菌剂。由于上述化合物具有卓越的抗菌活性和高度安全性,因此它们作为人畜用医药、鱼药、农药、食品防腐剂等方面非常有用。