Three new flavonoid glycosides from Pinus tabulaeformis Carr

J Asian Nat Prod Res. 2011 Jan;13(1):36-41. doi: 10.1080/10286020.2010.543899.

Abstract

Three new flavonoid glycosides, named 7,8,4'-trihydroxy-3,5-dimethoxy-6-methylflavonol-8-O-β-D-glucopyranoside (1), 5,7,4'-trihydroxy-3-methoxy-6-methylflavonol-7-O-β-D-glucopyranoside (2), 3,5,7,4'-tetrahydroxy-6-methylflavonol-7-O-β-D-glucopyranoside (3), together with two known flavonoid glycosides were isolated from the needles of Pinus tabulaeformis Carr. Their structures were established on the basis of various spectroscopic analyses.

MeSH terms

  • Drugs, Chinese Herbal / chemistry
  • Drugs, Chinese Herbal / isolation & purification*
  • Flavonoids / chemistry
  • Flavonoids / isolation & purification*
  • Glycosides / chemistry
  • Glycosides / isolation & purification*
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Pinus / chemistry*
  • Stereoisomerism

Substances

  • 3,5,7,4'-tetrahydroxy-6-methylflavonol-7-O-beta-D-glucopyranoside
  • 5,7,4'-trihydroxy-3-methoxy-6-methylflavonol-7-O-beta-D-glucopyranoside
  • 7,8,4'-trihydroxy-3,5-dimethoxy-6-methylflavonol-8-O-beta-D-glucopyranoside
  • Drugs, Chinese Herbal
  • Flavonoids
  • Glycosides