Total Synthesis of (+)-Phorboxazole A Exploiting the Petasis−Ferrier Rearrangement
作者:Amos B. Smith、Kevin P. Minbiole、Patrick R. Verhoest、Michael Schelhaas
DOI:10.1021/ja011604l
日期:2001.11.1
convergent, stereocontrolled total synthesis of the potent antiproliferative agent (+)-phorboxazole A (1) has been achieved. Highlights of the synthesis include: modified Petasis-Ferrier rearrangements for assembly of both the C(11-15) and C(22-26) cis-tetrahydropyran rings; extension of the Julia olefination to the synthesis of enol ethers; the design, synthesis, and application of a novel bifunctional
已经实现了强效抗增殖剂 (+)-phorboxazole A (1) 的高度收敛、立体控制的全合成。合成的亮点包括:用于组装 C(11-15) 和 C(22-26) 顺式四氢吡喃环的改良 Petasis-Ferrier 重排;Julia 烯化扩展到烯醇醚的合成;一种新型双功能恶唑关键的设计、合成与应用;C(28) 三甲基锡烷与 C(29) 恶唑三氟甲磺酸酯的 Stille 偶联。最长的线性序列导致 (+)-phorboxazole A (1) 为 27 步,总产率为 3%。