Two new dammarane-type triterpene saponins from red American ginseng

J Asian Nat Prod Res. 2011 Mar;13(3):198-204. doi: 10.1080/10286020.2010.550575.

Abstract

Two new dammarane-type triterpene saponins were isolated from the red American ginseng. The new saponins were named as pseudoginsenoside G(1) and pseudoginsenoside G(2). Their structures were elucidated by the combined analysis of NMR and mass spectrometry as 3-O-[β-d-glucopyranosyl-(1 → 2)-β-d-glucopyranosyl]-dammar-12-one-20S,24R-epoxy-3β,25-diol (pseudoginsenoside G(1)) (1) and 3-O-[β-d-glucopyranosyl-(1 → 2)-β-d-glucopyranosyl]-dammar-12-one-20S,24S-epoxy-3β,25-diol (pseudoginsenoside G(2)).

MeSH terms

  • Dammaranes
  • Drugs, Chinese Herbal / chemistry*
  • Drugs, Chinese Herbal / isolation & purification*
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Panax / chemistry*
  • Saponins / chemistry*
  • Saponins / isolation & purification*
  • Stereoisomerism
  • Triterpenes / chemistry*
  • Triterpenes / isolation & purification*

Substances

  • Drugs, Chinese Herbal
  • Saponins
  • Triterpenes
  • pseudoginsenoside G(1)
  • pseudoginsenoside G(2)