4-Oxo-3-quinolinecarboxylic acids useful as antibacterial agents and preparation thereof
申请人:STERLING WINTHROP INC.
公开号:EP0309789A1
公开(公告)日:1989-04-05
A compound useful as an antibacterial agent having the formula:
wherein:
R is hydrogen or lower-alkyl;
R′ is hydrogen, fluoro or -SR‴,
where R‴ is phenyl, benzyl or lower-alkyl;
R˝ is selected from hydrogen, fluoro and
-SR‴, with the proviso that when R˝ is hydrogen, R′ is also hydrogen;
or a pharmaceutically acceptable acid-addition salt thereof; or an alkali metal or amine salt of a compound where R is hydrogen as well as processes for the preparation thereof.
一种可用作抗菌剂的化合物,其式如下
其中
R是氢或低级烷基;
R′是氢、氟或-SR‴、
其中 R‴ 是苯基、苄基或低级烷基;
R˝ 选自氢、氟和
-SR‴,但 R˝ 为氢时,R′ 也为氢;
或其药学上可接受的酸加成盐;或 R 为氢的化合物的碱金属盐或胺盐及其制备方法。