申请人:Otsuka Pharmaceutical Company, Limited
公开号:US05591744A1
公开(公告)日:1997-01-07
Novel 4-oxoquinoline-3-carboxylic acid compounds of the formula: ##STR1## wherein R.sup.1 is cyclopropyl which may have 1 to 3 substituents of alkyl and halogen; phenyl which may be substituted by 1 to 3 substituents of alkoxy, halogen and OH; alkyl which may be substituted by halogen, alkanoyloxy or OH; alkenyl; or thienyl, R.sup.2 is 5- to 9-membered saturated or unsaturated heterocyclic ring which may be sustituted, R.sup.3 is alkyl or halogen, R.sup.4 is alkyl or halogen, R is H or alkyl, R.sup.1 and R.sup.3 may be taken together to form ##STR2## wherein R.sup.31 is H or alkyl, and X is halogen, provided that R.sup.3 and R.sup.4 are not simultaneously halogen, and salts thereof, said compounds having excellent antimicrobial activity and hence being useful as an antimicrobial agent, and a pharmaceutical composition containing said compound as an active ingredient.
化合物的化学式为:##STR1## 其中R.sup.1是环丙基,可以有1到3个烷基和卤素取代基;苯基,可以被1到3个烷氧基,卤素和羟基取代;烷基,可以被卤素,烷酰氧或羟基取代;烯基;或噻吩基,R.sup.2是5-到9-成员的饱和或不饱和杂环环,可以被取代,R.sup.3是烷基或卤素,R.sup.4是烷基或卤素,R是氢或烷基,R.sup.1和R.sup.3可以一起取代为:##STR2## 其中R.sup.31是氢或烷基,X是卤素,前提是R.sup.3和R.sup.4不同时是卤素,以及其盐。这些化合物具有出色的抗微生物活性,因此可用作抗微生物剂,以及含有该化合物作为活性成分的制药组合物。