Visible‐Light Photoredox Catalysis Enables the Biomimetic Synthesis of Nyingchinoids A, B, and D, and Rasumatranin D
作者:Jacob D. Hart、Laura Burchill、Aaron J. Day、Christopher G. Newton、Christopher J. Sumby、David M. Huang、Jonathan H. George
DOI:10.1002/anie.201814089
日期:2019.2.25
The totalsynthesis of nyingchinoids A and B has been achieved through successive rearrangements of a 1,2‐dioxane intermediate that was assembled using a visible‐light photoredox‐catalysed aerobic [2+2+2] cycloaddition. Nyingchinoid D was synthesised with a competing [2+2] cycloaddition. Based on NMR data and biosynthetic speculation, we proposed a structure revision of the related natural product