Microbial transformations of natural antitumour agents. Part 15. Metabolism of bruceantin by Streptomyces griseus
作者:Millie M. Chien、John P. Rosazza
DOI:10.1039/p19810001352
日期:——
bruceantin-5′-ol (5). Structures of metabolites were assigned based on their 1H n.m.r. and mass spectral characteristics. Metabolites (3) and (5) are novel analogues of bruceantin, and are formed by an unusual pathway involving oxidation of bruceantin, probably through the unisolated 4′,5′-bruceantin olefin (2) to the epoxide (3), which serves as an obligatory precursor for bruceine C (4) and bruceantin-5′-ol