Polyoxygenated flavonoids from Eugenia edulis

Phytochemistry. 2003 Oct;64(4):883-9. doi: 10.1016/s0031-9422(03)00437-0.

Abstract

Leaves of Eugenia edulis contain the new polyoxygenated flavonoid derivatives, gossypetin-3,8-dimethyl ether-5-O-beta-glucoside; gossypetin-3,5-dimethyl ether, and myricetin-3,5,3'-trimethyl ether. In addition, ten known polyphenolics were also isolated and identified. All structures were established on the basis of chemical and spectral evidence, including ESI-MS and 13C NMR.

MeSH terms

  • Flavonoids / chemistry*
  • Flavonoids / isolation & purification*
  • Flavonoids / metabolism
  • Magnetic Resonance Spectroscopy
  • Molecular Structure
  • Oxygen / metabolism
  • Phenols / chemistry
  • Phenols / isolation & purification
  • Plant Leaves / chemistry
  • Plant Leaves / metabolism
  • Spectrometry, Mass, Electrospray Ionization
  • Spectrophotometry, Ultraviolet
  • Syzygium / chemistry*
  • Syzygium / metabolism

Substances

  • Flavonoids
  • Phenols
  • Oxygen