The firsttotalsynthesis of dermocanarin 2 is described. The synthesis features the construction of the anthraquinone and naphthoquinone frameworks through annulation reactions onto an axially chiral biphenyl intermediate, obtained by an enzyme-catalyzed enantioselective desymmetrization of a σ-symmetric precursor, followed by a stereoselective aldol reaction to construct the stereogenic center in
Exploring Chemical Diversity of Epoxyquinoid Natural Products: Synthesis and Biological Activity of (−)-Jesterone and Related Molecules
作者:Yongbo Hu、Chaomin Li、Bheemashankar A. Kulkarni、Gary Strobel、Emil Lobkovsky、Richard M. Torczynski、John A. Porco
DOI:10.1021/ol0159367
日期:2001.5.1
Enantioselective syntheses of the potent antifungal agent (-)-jesterone, its hydroxy epimer, and a dimeric quinone epoxide derivative are reported. The synthesis involves diastereoselective epoxidation of a chiral quinone monoketal derivative and regio- and stereoselective reduction of a quinone epoxide intermediate.