Biomimetic Synthetic Studies on the Bruceol Family of Meroterpenoid Natural Products
作者:Aaron J. Day、Christopher J. Sumby、Jonathan H. George
DOI:10.1021/acs.joc.9b02862
日期:2020.2.21
The key step in the synthesis of both bruceol and isobruceol was an intramolecular hetero-Diels-Alder reaction of an o-quinone methide that was formed by dearomatization of an electron-rich chromene. The synthesis of an elusive biosynthetic intermediate also allowed a concise synthesis of eriobrucinol via a photochemical [2 + 2] cycloaddition. Furthermore, some speculation on the biosynthesis of prenylated