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Development of the semi-synthetic penicillins and cephalosporins - PubMed

Review

Development of the semi-synthetic penicillins and cephalosporins

J M T Hamilton-Miller. Int J Antimicrob Agents. 2008 Mar.

Abstract

Semi-synthetic penicillins and cephalosporins both derive from their respective chemical nuclei, 6-aminopenicillanic acid (6-APA) and 7-aminocephalosporanic acid (7-ACA). Work leading to their isolation was being carried out in parallel, but following very different pathways, during the last half of the 1950s. The development of 6-APA was reviewed recently in this journal, and in the present article I take a closer look at early work on 'penicillin amidase' and revisit the steps that led to 7-ACA.

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