7-BETA-AMINO-CEPHAM-3-ON-4-CARBOXYLSYREFORBINDELSER OG 1-OXIDER OG SALTE DERAF TIL ANVENDELSE SOM MELLEMPRODUKT VED FREMSTILLING AF ANTIBIOTISK VIRKSOMME 7-BETA-ACYLAMINO-3-CEPHEM-4-CARBOXYLSYREFORBINDELSER

摘要

The invention concerns 7 beta -amino-cepham-3-one-4-carboxylic acid compounds, particularly esters thereof, and the N-substituted, especially N-acylated derivatives of such compounds. They can be used as intermediates, for example, for the manufacture of the corresponding enol ethers and esters, as well as the corresponding 3-unsubstituted 7 beta -amino-3-cephem-4-carboxylic acid compounds, which show outstanding pharmacological effects.