CEPHALOSPORINER ELLER FARMACEUTISK ACCEPTABLE SALTE DERAF, DERES FREMSTILLING OG ANVENDELSE SOM LAEGEMIDLER

摘要

Novel cephalosporins of the formula in which R1 is an aliphatic or cycloaliphatic hydrocarbyl radical of up to 6 carbon atoms which is optionally substituted by a carboxyl group, +TR R2 and R3 each independently is an optionally substituted aliphatic or cycloaliphatic hydrocarbyl radical of up to 6 carbon atoms, but is not unsubstituted methyl, or pharmaceutically acceptable salts thereof, are effective antibacterially and promote the growth of animals.