Pentacyclic triterpenoid saponin from Cyclamen coum

Planta Med. 1998 May;64(4):382-4. doi: 10.1055/s-2006-957459.


A new triterpenoid saponin, coumoside B, has been isolated from the whole plant of Cyclamen coum. The structure of the compound 3 (C58H92O27) has been deduced by NMR (400 MHz) methods based on the 1H, 13C, DEPT, 1H-1H COSY, HETCOR, NOESY-NMR experiments, and FAB-mass spectrum. Compound 3 was shown to have the structure 16 alpha-hydroxy-3 beta-[[[[beta-xylopyranosyl-(1-->2)]-[beta-glucopyranosyl-(1-->4)]- [beta-glucopyranosyl-(1-->2)]- alpha-arabinopyranosyl]-oxy]olean-12-eno-30,28-lactone and is named coumoside B.

Publication types

  • Letter
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbohydrate Conformation
  • Carbohydrate Sequence
  • Magnetic Resonance Spectroscopy
  • Molecular Sequence Data
  • Oleanolic Acid* / analogs & derivatives*
  • Plants / chemistry*
  • Saponins / chemistry
  • Saponins / isolation & purification*
  • Spectrometry, Mass, Fast Atom Bombardment


  • Saponins
  • coumoside B
  • Oleanolic Acid