Asymmetric Total Synthesis of Cerorubenic Acid-III

J Am Chem Soc. 2019 Feb 20;141(7):2872-2877. doi: 10.1021/jacs.8b12647. Epub 2019 Feb 7.

Abstract

The first asymmetric total synthesis of the highly strained compound cerorubenic acid-III is reported. A type II intramolecular [5 + 2] cycloaddition allowed efficient and diastereoselective construction of the synthetically challenging bicyclo[4.4.1] ring system with a strained bridgehead (anti-Bredt) double bond in the final product. A unique transannular cyclization installed the vinylcyclopropane moiety with retention of the desired stereochemistry.

Publication types

  • Research Support, Non-U.S. Gov't