Total Synthesis of <i>ent</i>-Dioxepandehydrothyrsiferol via a Bromonium-Initiated Epoxide-Opening Cascade
作者:Jessica Tanuwidjaja、Sze-Sze Ng、Timothy F. Jamison
DOI:10.1021/ja9052366
日期:2009.9.2
In the first totalsynthesis of ent-dioxepandehydrothyrsiferol, the signature trans-anti-trans 7,7,6-fused tricyclic polyether framework was constructed in a single bromonium-initiated epoxide-openingcascade that incorporates both endo- and exo-selective epoxide openings, each directed by the substitution pattern of the epoxide (methyl groups). This study thus demonstrates the feasibility of a possible