Transformation of D-glucosamine into the p-nitrobenzylester (2) of SQ27860 is described, revealing the absoluteconfiguration of this carbapenem antibiotic as (1).
The isolation and characterisation of (3R,5R)- and (3S,5R)-carbapenam-3-carboxylic acid from Serratia and Erwinia species and their putative biosynthetic role
作者:Barrie W. Bycroft、Christopher Maslen、Stephen J. Box、Allan G. Brown、John W. Tyler
DOI:10.1039/c39870001623
日期:——
Two new β-lactams (4b) and (5b), and (3S,5R)-carbapenam-3-carboxylicacid, have been isolated from strains of Serratia and Erwinia spp.; their possible role, and that of (5R)-carbapen-2-em-3-carboxylic acid as intermediates in the biosynthesis of the more complex members of the carbapenem family of β-lactam antibiotics is discussed.