Novel .alpha.-thio-alkanoic acid derivatives and a process for their preparation. These novel compounds can be easily converted to useful medicines.
新颖的α-硫代烷酸衍生物及其制备方法。这些新颖化合物可以轻松转化为有用的药物。
Cephalosporins having a sulfur containing functional group in the
申请人:Sagami Chemical Research Center
公开号:US04137406A1
公开(公告)日:1979-01-30
Cephalosporins having a sulfur-containing functional group of the formula ##STR1## present at the carbon atom directly bonded to the thienyl or furyl group in the side chain of the 7-position of cephem derivatives. These compounds are useful as anti-bacterial agents against Gram-positive and Gram-negative bacteria.
The present invention provides .alpha.-methylthio-.alpha.-(p-phthalimidophenyl)-propionic acid and its esters of the formula: ##STR1## wherein R' represents H or C.sub.1 -C.sub.4 alkyl. The subject compounds are useful as intermediates e.g. for Indoprofen.