Enantioselective Total Synthesis of the Reported Structures of (−)-9-epi-Presilphiperfolan-1-ol and (−)-Presilphiperfolan-1-ol: Structural Confirmation and Reassignment and Biosynthetic Insights
作者:Allen Y. Hong、Brian M. Stoltz
DOI:10.1002/anie.201205276
日期:2012.9.17
When epi isn't! The first totalsynthesis of the reportedstructures of 9‐epi‐presilphiperfolan‐1‐ol and presilphiperfolan‐1‐ol has been achieved. Key steps are a catalytic asymmetric alkylation of a novel diene‐containing electrophile followed by a two‐carbon ring contraction and an intramolecular Diels–Alder cycloaddition to form the stereochemically dense tricyclic core. The synthetic work has resulted