Total Synthesis of (-)-Conolutinine

Org Lett. 2015 Sep 18;17(18):4428-31. doi: 10.1021/acs.orglett.5b02046. Epub 2015 Aug 28.

Abstract

The first enantioselective synthesis of (-)-conolutinine was achieved in 10 steps. The synthesis featured a catalytic asymmetric bromocyclization of tryptamine to forge the tricycle intermediate. Hydration of an alkene catalyzed by Co(acac)2 was also employed as a key step to diastereoselectively introduce the tertiary alcohol moiety. The absolute configuration of (-)-conolutinine was established to be (2S,5aS,8aS,13aR) based on this asymmetric total synthesis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkenes / chemical synthesis
  • Alkenes / chemistry
  • Catalysis
  • Cyclization
  • Hydrocarbons, Brominated / chemistry
  • Indole Alkaloids / chemical synthesis*
  • Indole Alkaloids / chemistry
  • Malaysia
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Stereoisomerism
  • Tryptamines

Substances

  • Alkenes
  • Hydrocarbons, Brominated
  • Indole Alkaloids
  • Tryptamines
  • conolutinine
  • tryptamine