A concise route to the azaspirodecane moiety of halichlorine and structurally related alkaloids

Org Lett. 2005 Apr 14;7(8):1617-9. doi: 10.1021/ol050306g.

Abstract

[reaction: see text] A tandem Michael addition-enolate alkylation followed by Dieckmann cyclization and Beckmann rearrangement provided the corresponding [5.4.0] azaspirobicyclodecane, a key intermediate in our synthetic route to the marine alkaloid halichlorine (1).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkaloids / chemical synthesis*
  • Animals
  • Molecular Structure
  • Porifera / chemistry
  • Spiro Compounds / chemical synthesis*
  • Stereoisomerism

Substances

  • Alkaloids
  • Spiro Compounds
  • halichlorine