Structures of new secofriedelane and friedelane acids from Calophyllum inophyllum of French Polynesia

Magn Reson Chem. 2005 Jan;43(1):65-8. doi: 10.1002/mrc.1476.

Abstract

Three new friedelane-type triterpenoids, 3,4-secofriedelan-3,28-dioic acid (1), 27-hydroxyacetate canophyllic acid (2) and 3-oxo-27-hydroxyacetate friedelan-28-oic acid (3), were isolated from the leaves of Calophyllum inophyllum (Clusiaceae) grown in French Polynesia. Their structures were established by the concerted application of 2D NMR techniques including gs-COSY, gs-HMQC and gs-HMBC.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calophyllum / chemistry*
  • Magnetic Resonance Spectroscopy / methods
  • Models, Molecular
  • Molecular Conformation
  • Polynesia
  • Terpenes / chemistry*
  • Triterpenes / chemistry

Substances

  • Terpenes
  • Triterpenes
  • friedelane