Microbial transformation of dehydrogriseofulvin and griseofulvin: 2H n.m.r. and mass spectrometric studies of stereochemical courses of microbial hydrogenation and hydroxylation
Abstract
2 H N.m.r. spectroscopy has been used to determine the stereochemistry of microbial hydrogenation of dehydrogriseofulvin to griseofulvin and microbial hydroxylation of the latter to 5′α-hydroxygriseofulvin, respectively.