De novo asymmetric synthesis of D- and L-swainsonine

Org Lett. 2006 Apr 13;8(8):1609-12. doi: 10.1021/ol0602811.

Abstract

[reaction: see text] The enantioselective syntheses of both enantiomers of the indolizidine natural product swainsonine have been achieved in 13 steps from furan. The indolizidine ring system is installed by a one-pot hydrogenolysis of both an azide and an O-Bn group along with an intramolecular reductive amination reaction. The asymmetry of swainsonine was introduced by Noyori reduction of an acylfuran. This route relies upon an Achmatowicz rearrangement, a diastereoselective palladium-catalyzed glycosylation, Luche reduction, and a dihydroxylation reaction.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Catalysis
  • Glycosylation
  • Molecular Structure
  • Palladium / chemistry*
  • Stereoisomerism
  • Swainsonine / chemical synthesis*
  • Swainsonine / chemistry

Substances

  • Palladium
  • Swainsonine