Xanthones from stems of Hypericum chinense

Chem Pharm Bull (Tokyo). 2007 Jan;55(1):19-21. doi: 10.1248/cpb.55.19.

Abstract

Six new xanthones, 4,6-dihydroxy-2,3-dimethoxyxanthone (1), 2,6-dihydroxy-3,4-dimethoxyxanthone (2), 6-hydroxy-2,3,4-trimethoxyxanthone (3), 3,6-dihydroxy-1,2-dimethoxyxanthone (4), 4,7-dihydroxy-2,3-dimethoxyxanthone (5), and 3,7-dihydroxy-2,4-dimethoxyxanthone (6) were isolated from the stems of Hypericum chinense, together with four known xanthones. Their structures were established based on spectroscopic studies.

MeSH terms

  • Chromatography, High Pressure Liquid
  • Hypericum / chemistry*
  • Magnetic Resonance Spectroscopy
  • Plant Stems / chemistry*
  • Spectrophotometry, Infrared
  • Xanthones / chemistry
  • Xanthones / isolation & purification*

Substances

  • Xanthones