A compound useful as an antibacterial agent compound having the formula:
wherein:
R is hydrogen or lower alkyl;
R′ is hydrogen, fluoro or -SR‴,
where R‴ is benzyl, phenyl or lower-alkyl;
R˝ is alkyl of 1-3 carbon atoms;
X is O or S;
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
苄基、
苯基或低级烷基;
R˝ 是 1-3 个
碳原子的烷基;
X 是 O 或 S;
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工艺。