作者:Koichiro Ota、Hiroaki Miyaoka、Kazuo Kamaike
DOI:10.1055/a-2147-9454
日期:2023.12
asymmetric total synthesis of the norsesquiterpenoid saniculamoid D, from a previously known pure chiral imide, with a longest linear sequence of seven steps. The key highlight of the synthesis is the formation of the bicyclo[3.1.0]hexane moiety through the Julia–Kocienski olefination and Hodgson cyclopropanation. Notably, the NMR spectra and specific rotation value of the synthesized structure did not agree
我们首次从先前已知的纯手性酰亚胺中合成了norsesquiterpenoid saniculamoid D,具有最长的七步线性序列。该合成的关键亮点是通过 Julia-Kocienski 烯化和 Hodgson 环丙烷化形成双环[3.1.0]己烷部分。值得注意的是,合成结构的核磁共振谱和比旋光度值与天然化合物的不一致。然而,对数据的细致比较促使重新分配 saniculamoid D 的正确结构,该结构现在对应于最初提出的 chromolaevanedione 的结构。