Pentaoxygenated xanthones and fatty acids from Bredemeyera brevifolia

Phytochemistry. 2000 Dec;55(7):847-51. doi: 10.1016/s0031-9422(00)00286-7.

Abstract

The polar portion of an ethanol extract of Bredemeyera brevifolia yielded two pentaoxygenated xanthones whose structures were determined as 1-methoxy-2,3,7,8-dimethylenedioxyxanthone, and 1,7,8-trimethoxy-2,3-methylene-dioxyxanthone. The apolar fraction contained various known fatty acids, structure determinations were accomplished by spectral analysis, mainly NMR, chemical derivatization and comparison to literature values.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Line
  • Fatty Acids / chemistry
  • Fatty Acids / isolation & purification*
  • Fatty Acids / pharmacology
  • Humans
  • Magnoliopsida / chemistry*
  • Molecular Structure
  • Spectrum Analysis
  • Xanthenes / chemistry
  • Xanthenes / isolation & purification*
  • Xanthenes / pharmacology
  • Xanthones*

Substances

  • Fatty Acids
  • Xanthenes
  • Xanthones
  • xanthone