C-Glycosylanthraquinone synthesis: total synthesis of vineomycinone B2 methyl ester
摘要:
A synthesis of substituted anthraquinones has been developed. Commercially available anthrarufin and 1,8-dihydroxyanthraquinone were converted to the corresponding (methoxymethoxy)anthracenes. Directed metalation followed by stannylation produced stable intermediates that were either alkylated, arylated, acylated, and/or C-glycosylated. The value of this new methodology was demonstrated by the triply convergent total synthesis of vineomycinone B2 methyl ester, a representative C-glycosylanthraquinone antibiotic.