Biosynthesis of the antitumor antibiotic sparsomycin
作者:Ronald J. Parry、Yan Li、Elizabeth Eudy Gomez
DOI:10.1021/ja00041a007
日期:1992.7
The biosynthesis of the antitumor antibiotic sparsomycin (1) has been investigated by administration of isotopically labeled precursors to Streptomyces sparsogenes var. sparsogenes. These studies indicated that the dithioacetal moiety (2) of sparsomycin is derived from L-cysteine via the intermediacy of 5-methylcysteine and S-(methylthiomethyl)cysteine, with reduction of the carboxyl group of 5-(m