A chemoenzymatic total synthesis of the protoilludane aryl ester (+)-armillarivin

Org Lett. 2013 Apr 19;15(8):1934-7. doi: 10.1021/ol400583c. Epub 2013 Apr 3.

Abstract

The title natural product, 1, has been synthesized in 20 steps from the enantiomerically pure cis-1,2-dihydrocatechol 2, itself obtained through the whole-cell biotransformation of toluene. The pivotal steps in the reaction sequence involve a Diels-Alder cycloaddition reaction between diene 2 and cyclopentenone (3) and the photochemically promoted 1,3-acyl rearrangement of the bicyclo[2.2.2]oct-4-en-1-one 20 derived from the cycloadduct 4.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biological Products / chemical synthesis*
  • Biological Products / chemistry
  • Cyclopentanes / chemistry
  • Esters
  • Molecular Structure
  • Polycyclic Sesquiterpenes
  • Sesquiterpenes / chemical synthesis*
  • Sesquiterpenes / chemistry
  • Stereoisomerism

Substances

  • Biological Products
  • Cyclopentanes
  • Esters
  • Polycyclic Sesquiterpenes
  • Sesquiterpenes
  • protoilludane
  • armillarivin
  • cyclopentenone