Stereocontrolled Syntheses of Peptide Thioesters Containing Modified Seryl Residues as Probes of Antibiotic Biosynthesis
作者:Nicole M. Gaudelli、Craig A. Townsend
DOI:10.1021/jo4007893
日期:2013.7.5
exclusion of light from the P(OEt)3-mediated Mitsunobu ringclosure afforded yields of >95%, presumably owing to reduced photodegradation of the azodicarboxylate used. These sensitive potential substrates and products will be used in mechanistic studies of the two nonribosomal peptide synthetases NocA and NocB that lie at the heart of nocardicin biosynthesis, a family of monocyclic β-lactam antibiotics.