Enantioselective Total Synthesis of Brevetoxin A: Unified Strategy for the B, E, G, and J Subunits
作者:Michael T. Crimmins、J. Michael Ellis、Kyle A. Emmitte、Pamela A. Haile、Patrick J. McDougall、Jonathan D. Parrish、J. Lucas Zuccarello
DOI:10.1002/chem.200900776
日期:2009.9.14
oxacycles, as well as 22 tetrahedral stereocenters. Herein, we describe a unified approach to the B, E, G, and J rings based upon a ring‐closing metathesis strategy from the corresponding dienes. The enolate technologies developed in our laboratory allowed access to the precursor acyclic dienes for the B, E, and G medium‐ring ethers. The strategies developed for the syntheses of these four monocycles
Brevetoxin A 是一种十环梯形毒素,具有 5、6、7、8 和 9 元氧杂环,以及 22 个四面体立体中心。在此,我们描述了基于来自相应二烯的闭环复分解策略的 B、E、G 和 J 环的统一方法。我们实验室开发的烯醇技术允许获得 B、E 和 G 中环醚的前体无环二烯。为合成这四个单环而开发的策略最终提供了数克数量的每个环,支持我们为完成短毒素 A 的收敛合成所做的努力。