申请人:Bayer Aktiengesellschaft
公开号:US04816451A1
公开(公告)日:1989-03-28
Antibacterially effective 1,8-bridged 4-quinolone-3-carboxylic acids and derivatives of the formula ##STR1## in which Y represents a carboxyl group, a nitrile group, an ester group --COOR.sup.7 or an acid amide group --CONR.sup.8 R.sup.9, X.sup.1 represents hydrogen, nitro, alkyl with 1-3 carbon atoms, or halogen, X.sup.5 represents hydrogen, halogen or alkyl, R.sup.10 and R.sup.11 complete an optionally substituted ring, and n is 0 or 1, and pharmaceutically usable hydrates, salts and esters thereof.
具有抗菌作用的1,8-桥联的4-喹啉-3-羧酸及其衍生物的化学式为##STR1## 其中Y代表羧基、腈基、酯基--COOR.sup.7或酸酰胺基--CONR.sup.8R.sup.9,X.sup.1代表氢、硝基、1-3个碳原子的烷基或卤素,X.sup.5代表氢、卤素或烷基,R.sup.10和R.sup.11组成一个可选取代的环,n为0或1,以及其药用水合物、盐和酯。