Derivatives of cephalosporanic acid, processes for their production and their use

摘要

7-[(Carboxymethoximino)-1H-pyrazol-3yl-acetyl]amino-3-desacetoxy-3-(1- methyl-1H-tetrazol-5yl-thio)cephalosporanic acid and salts and solvates thereof which possess chemotherapeutical in particular antibiotic activity.