Enantioselective Total Synthesis of (−)-Acylfulvene and (−)-Irofulven
作者:Dustin S. Siegel、Grazia Piizzi、Giovanni Piersanti、Mohammad Movassaghi
DOI:10.1021/jo901926z
日期:2009.12.18
We report our full account of the enantioselectivetotalsynthesis of (−)-acylfulvene (1) and (−)-irofulven (2), which features metathesis reactions for the rapid assembly of the molecular framework of these antitumor agents. We discuss (1) the application of an Evans Cu-catalyzed aldol addition reaction using a strained cyclopropyl ketenethioacetal, (2) an efficient enyne ring-closing metathesis cascade