A chemoenzymatic total synthesis of (+)-clividine

J Org Chem. 2011 Aug 5;76(15):6250-7. doi: 10.1021/jo201005d. Epub 2011 Jul 11.

Abstract

The title compound, ent-1, the non-natural enantiomeric form of the lycorenine-type alkaloid (-)-clividine (1), has been prepared using the enantiomerically pure (ee >99.8%) cis-1,2-dihydrocatechol 3 as starting material. A key feature associated with the closing stages of the synthesis involved the diastereoselective addition of a nitrogen-centered radical onto a pendant cyclohexene to establish the cis-fused D-ring and the required stereochemistry at C11b in the final product ent-1.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkaloids / chemistry*
  • Amaryllidaceae Alkaloids / chemical synthesis*
  • Amaryllidaceae Alkaloids / chemistry*
  • Molecular Structure
  • Stereoisomerism

Substances

  • Alkaloids
  • Amaryllidaceae Alkaloids
  • clividine
  • lycorenine