BiBr<sub>3</sub>‐Mediated Intramolecular Aza‐Prins Cyclization of Aza‐Achmatowicz Rearrangement Products: Asymmetric Total Synthesis of Suaveoline and Sarpagine Alkaloids
作者:Wai Fung Cheng、Shiqiang Ma、Yin Tung Lai、Yuen Tsz Cheung、Kornkamon Akkarasereenon、Yiqin Zhou、Rongbiao Tong
DOI:10.1002/anie.202311671
日期:2023.10.26
An intramolecular Prins cyclization of aza-Achmatowicz rearrangement products was developed to construct the versatile 9-azabicyclo[3.3.1]nonane (9-ABN) ring system with a variety of substitution patterns and then applied to the asymmetric total synthesis of six suaveoline and sarpagine alkaloids: macrophylline, suaveoline, norsuaveoline, affinisine, normacusine B and Na-Me-16-epipericyclivine.
开发了 aza-Achmatowicz 重排产物的分子内 Prins 环化,以构建具有多种取代模式的通用 9-氮杂双环[3.3.1]壬烷 (9-ABN) 环系统,然后应用于六种 Suaveoline 和沙帕津生物碱:大茶碱、甜甜碱、去苏甜碱、阿菲尼辛、正马库辛 B 和N a -Me-16-表哌环利文。