Synthetic Efforts toward Lannotinidine G Based on an Aziridinium-Mediated Ring Contraction and Dienyne Metathesis
作者:Zisis Peitsinis、Dirk Trauner
DOI:10.1021/acs.orglett.4c00791
日期:2024.4.19
Lannotinidine G is a unique Lycopodium alkaloid that features a tricyclic [6/6/6] core with 3 contiguous stereocenters and a 1,3-diene moiety in addition to a 7-membered lactone. Herein, we disclose our efforts toward the synthesis of this natural product, which achieved the construction of the aza-tricyclic core with the correct configuration at its three stereocenters. Key features of our strategy
Lannotinidine G 是一种独特的石松生物碱,具有三环 [6/6/6] 核心,具有 3 个连续的立体中心和 1,3-二烯部分以及 7 元内酯。在此,我们公开了我们对这种天然产物合成的努力,其实现了在其三个立体中心具有正确构型的氮杂三环核心的构建。我们策略的关键特征包括高度非对映选择性的 Fráter–Seebach 烷基化和 Corey–Chaykovsky 型环氧化物形成、用于形成哌啶部分的不寻常的氮丙啶介导的环收缩以及区域选择性二烯复分解。