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 enantioselective total synthesis 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
我们报告了对 (-)-acylfulvene ( 1 ) 和 (-)-irofulven ( 2 )的对映选择性全合成的完整描述,其特征是复分解反应,用于快速组装这些抗肿瘤药物的分子框架。我们讨论了 (1) 使用应变环丙基烯酮硫缩醛的 Evans Cu 催化羟醛加成反应的应用,(2) 在具有挑战性的环境中有效的烯炔闭环复分解级联反应,(3) 用于后期阶段的试剂 IPNBSH还原烯丙基转座反应,和(4)的形成最终RCM /脱氢序列( - ) - acylfulvene(1)和( - ) - irofulven(2)。