Autor: E. C. Roos, Quirinus B. Broxterman, Theo Sonke, Eric Mossel, Johan Kamphuis, Marco Crisma, Fernando Formaggio, Claudio Toniolo
Rok vydání: 1998
Předmět:
Zdroj: Letters in Peptide Science. 5:43-48
ISSN: 0929-5666
DOI: 10.1023/a:1008806925287
Popis: Reaction of the N-carboxyanhydride from Cα-methyl d-phenylglycine with either 6-aminopenicillanic acid or 7-amino-3-desacetoxy-cephalosporanic acid furnishes the corresponding ampicillin and cephalexin analogues. Neither the biological activity nor the chemical stability of these new semi-synthetic antibiotics are superior to those of their unmethylated counterparts.
Databáze: OpenAIRE