7-Trichloroacetamido-3-desacetoxy-cephalosporanic acid esters

摘要

The invention provides 7-trichloroacetamido-3-desacetoxy- cephalosporanic acid derivatives of the formula:PPWHEREIN R is a group which protects the carboxylic acid radical, which can be converted into 7-amino-3-desacetoxycephalosporanic acid by replacing the R-- and Cl.sub.3 C--CO-- radicals by hydrogen atoms.