申请人:PFIZER INC.
公开号:EP0138538A1
公开(公告)日:1985-04-24
Certain 2-dioxacycloalkylthio-2-penem-3-carboxylic acid compounds are useful as antibacterials for treating mammal and have the formula
or a pharmaceutically acceptable salt thereof, wherein: Ris
A is carbonyl, methylene or thiocarbonyl;
B is alkylene having 2-5 carbon atoms;
alk is alkylene having 1-6 carbon atoms;
R1 is hydrogen or a group which results in an ester which is hydrolyzable in vivo; and n is zero or one.
某些 2-二氧杂环烷基硫基-2-青霉烯-3-羧酸化合物可用作治疗哺乳动物的抗菌剂,其分子式为
或其药学上可接受的盐,其中式中
A 是羰基、亚甲基或硫代羰基;
B 是具有 2-5 个碳原子的亚烷基
烷基是具有 1-6 个碳原子的亚烷基;
R1 是氢或可形成在体内可水解的酯的基团;以及 n 是 0 或 1。