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Cephalosporins from glycinic esters. 1. Total synthesis of the cephamycin framework

✍ Scribed by Bakasse, Mina; Reliquet, Alain; Reliquet, Francoise; Duguay, Guy; Quiniou, Herve


Book ID
125441363
Publisher
American Chemical Society
Year
1989
Tongue
English
Weight
654 KB
Volume
54
Category
Article
ISSN
0022-3263

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## Abstract An efficient synthesis of HR 916 B (4), the orally active 1‐(__RS__)‐(pivaloyloxy)ethyl prodrug ester of the cephalosporin cefdaloxime, was developed and applied on a multi‐kg scale. AMCA (8) was prepared by exchange of the acetoxy group of fermentation product ACA (7) with the nucleoph