Cyclobutenbriarein A, the first diterpene with a tricyclo[8.4.0.0(3,6)]tetradec-4-ene ring system isolated from the Gorgonian Briareum asbestinum

J Org Chem. 2002 Jul 26;67(15):5117-23. doi: 10.1021/jo0160221.

Abstract

Cyclobutenbriarein A (2), a novel class of C20-rearranged diterpene briarane possessing an unprecedented tricyclo[8.4.0.0(3,6)]tetradec-4-ene ring system was isolated, along with five new briarane diterpenoids (1 and 3-6), from the organic extracts of the Bahamian gorgonian Briareum asbestinum. The structures of these secondary metabolites were established on the basis of extensive NMR studies and accurate mass measurements (HRFABMS).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bahamas
  • Cnidaria / chemistry*
  • Crystallography, X-Ray
  • Cyclization
  • Diterpenes / chemistry*
  • Diterpenes / isolation & purification*
  • Molecular Conformation
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular

Substances

  • Diterpenes
  • cyclobutenbriarein A