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Convergent Total Synthesis of (−)-Cyclopamine
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2023-10-02 , DOI: 10.1021/jacs.3c09085
Manolis Sofiadis 1 , Dongmin Xu 1 , Anthony J Rodriguez 1 , Benedikt Nissl 1 , Sebastian Clementson 2 , Nadia Nasser Petersen 2 , Phil S Baran 1
Affiliation  

A concise and enantioselective total synthesis of the Veratrum alkaloid cyclopamine is disclosed. This highly convergent synthesis with a 16-step longest linear sequence (LLS) was enabled by a de novo synthesis of the trans-6,5-heterobicycle via a strain-inducing halocyclization process, a key Tsuji–Trost cyclization to construct the fully substituted, spirocyclic THF motif with exquisite diastereocontrol, and a late-stage ring-closing metathesis (RCM) reaction to forge the central tetrasubstituted olefin.

中文翻译:


(-)-环巴胺的趋同全合成



公开了藜芦生物碱环帕胺的简洁和对映选择性全合成。这种具有 16 步最长线性序列 (LLS) 的高度收敛合成是通过应变诱导盐环化过程从合成反式 6,5-heterobicycle、关键的 Tsuji-Trost 环化以构建具有精细非对映控制的完全取代的螺环 THF 基序,以及晚期闭环复分解 (RCM) 反应以锻造中央四取代烯烃。
更新日期:2023-10-02
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