CEPHALOSPORIN DERIVATIVES

摘要

RAN ES 4410/156 Cephalosporin derivatives of the general formula I in which R represents the pivaloyloxymethyl or acetoxymethyl group, as well as acid addition salts of these compounds and hydrates of the compounds of formula I or of their acid addition salts as well as their manufacture. Further, also corresponding pharmaceutical preparations having antimicrobial activity, the use of these products in the treatment of illnesses and the manufacture of the active substances.