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.
化合物的名称为4-氧喹啉-3-羧酸,其化学式为:##STR1##
其中,R1为环丙基,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,烷酰氧基或羟基取代;烯基;或噻吩基,R2为5到9个成员的饱和或不饱和杂环,可以被取代,R3为烷基或卤素,R4为烷基或卤素,R为氢或烷基,R1和R3可以一起取代形成##STR2##
其中,R31为氢或烷基,X为卤素,前提是R3和R4不能同时为卤素。这些化合物具有优异的抗微生物活性,因此可用作抗微生物剂,并且含有该化合物作为活性成分的制药组合物。