发明授权
- 专利标题： Acylthiomethyl esters of cephalosporins
- 专利标题（中）： 头孢菌素的酰基硫代甲酯
-
申请号： US51656674申请日： 1974-10-21
-
公开(公告)号： US3929774A公开(公告)日： 1975-12-30
- 发明人: BREUER HERMANN
- 申请人： SQUIBB & SONS INC
- 专利权人： E R Squibb and Sons LLC
- 当前专利权人： E R Squibb and Sons LLC
- 优先权： US51656674 1974-10-21; US27770072 1972-08-03
- 主分类号： C07D501/24
- IPC分类号： C07D501/24 ; C07D501/36
摘要：
WHEREIN R1 is tetrazolylmethyl or (lower alkyl)tetrazolylmethyl; R2 is hydrogen or lower alkyl; R3 is lower alkyl; and X is thiadiazolylthio or (lower alkyl)thiadiazolylthio. They are useful as antibacterial agents.
New acylthiomethyl esters of cephalosporins have the formula
New acylthiomethyl esters of cephalosporins have the formula