Total synthesis of Epothilone E and related side-chain modified analogues via a stille coupling based strategy1This paper is dedicated with admiration and respect to the memory of Sir Derek H. R. Barton.1
作者:K.C. Nicolaou、N.P. King、M.R.V. Finlay、Y. He、F. Roschangar、D. Vourloumis、H. Vallberg、F. Sarabia、S. Ninkovic、D. Hepworth
DOI:10.1016/s0968-0896(98)00153-9
日期:1999.5
A Stille coupling strategy has been utilized to complete a total synthesis of epothilone E from vinyl iodide 7 and thiazole-stannane 8h. The central core fragment 7 and its trans-isomer 11 were prepared from triene 15 using ring-closing metathesis (RCM), and were subsequently coupled to a variety of alternative stannanes to provide a library of epothilone analogues 18a-o and 19a-o. The Stille coupling
已利用Stille偶联策略完成了从乙烯基碘7和噻唑-锡烷8h合成埃博霉素E的全过程。使用闭环复分解(RCM)由三烯15制备中心核心片段7及其反式异构体11,随后将其与多种替代的锡烷偶联以提供埃坡霉素类似物18a-o和19a-o的文库。然后使用Stille偶联方法从关键的大内酯中间体24制备埃博霉素B类似物,该中间体本身是通过基于大内酯化的策略合成的。