Total Syntheses of (+)-Zampanolide and (+)-Dactylolide Exploiting a Unified Strategy
作者:Amos B. Smith、Igor G. Safonov、R. Michael Corbett
DOI:10.1021/ja020635t
日期:2002.9.1
The first total syntheses of (+)-zampanolide (1) and (+)-dactylolide (2), members of a new class of tumor cell growth inhibitory macrolides, have been achieved. Key features of the unified synthetic scheme included the stereocontrolled construction of the cis-2,6-disubstituted tetrahydropyran via a modified Petasis-Ferrier rearrangement, a highly convergent assembly of the macrocyclic domain, and,
(+)-zampanolide (1) 和 (+)-dactylolide (2) 是一类新的抑制肿瘤细胞生长的大环内酯类的成员,已经实现了首次全合成。统一合成方案的关键特征包括通过修饰的 Petasis-Ferrier 重排、大环域的高度收敛组装以及在赞帕诺内酯的情况下,通过 Curtius 重排立体控制构建顺式-2,6-二取代四氢吡喃/酰化策略来安装 N-酰基半胺。还指定了 (+)-zampanolide 和 (+)-dactylolide 的完整相对和绝对立体化学,尽管在 (+)-zampanolide (1) 的情况下是暂时的。