Catalytic Asymmetric Total Synthesis of (−)-Garryine via an Enantioselective Heck Reaction
作者:Chuang Li、Fei Lu、Yukun Cai、Cheng Zhang、Yu Shao、Yuanyuan Zhang、Xiao-Yu Liu、Yong Qin
DOI:10.1021/jacs.3c12171
日期:2024.1.10
The first asymmetric total synthesis of the hexacyclic veatchine-type C20-diterpenoid alkaloid (−)-garryine is presented. Key steps include a Pd-catalyzed enantioselective Heck reaction, a radical cyclization, and a photoinduced C–H activation/oxazolidine formation sequence. Of note, a highly enantioselective Heck reaction developed in this work provides efficient access to 6/6/6 tricyclic compounds
首次提出六环veatchine型C 20 -二萜生物碱(-)-garryine的不对称全合成。关键步骤包括 Pd 催化的对映选择性 Heck 反应、自由基环化和光诱导的 C–H 活化/恶唑烷形成序列。值得注意的是,这项工作中开发的高度对映选择性 Heck 反应可以有效地获得 6/6/6 三环化合物,特别是含有 C19 官能团的化合物,这对于多种转化非常有用。