Concise Total Synthesis of Salimabromide

J Am Chem Soc. 2022 Oct 19;144(41):18778-18783. doi: 10.1021/jacs.2c08337. Epub 2022 Oct 4.

Abstract

We achieved a concise total synthesis of salimabromide by using a novel intramolecular radical cyclization to simultaneously construct the unique benzo-fused [4.3.1] carbon skeleton and the vicinal quaternary stereocenters. Other notable transformations include a tandem Michael/Mukaiyama aldol reaction to introduce most of the molecule's structural elements, along with hidden information for late-stage transformations, an intriguing tandem oxidative cyclization of a diene to form the bridged butyrolactone and enone moieties spontaneously, and a highly enantioselective hydrogenation of a cycloheptenone derivative (97% ee) that paved the way for the asymmetric synthesis of salimabromide.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbon*
  • Cyclization
  • Heterocyclic Compounds, 4 or More Rings* / chemistry
  • Stereoisomerism

Substances

  • salimabromide
  • Heterocyclic Compounds, 4 or More Rings
  • Carbon