Planta Med 1998; 64(4): 382-384
DOI: 10.1055/s-2006-957459

© Georg Thieme Verlag Stuttgart · New York

Pentacyclic Triterpenoid Saponin from Cyclamen coum

Nurettin Yayli1 , Cemalettin Baltaci1 , Ali Zengin1 , Mustafa Küçükislamoglu1 , Hasan Genç1 , Mahir Küçük2
  • 1Karadeniz Technical University, Faculty of Science, Department of Chemistry, Trabzon, Turkey
  • 2Forestry Research Institute, Trabzon, Turkey
Further Information

Publication History



Publication Date:
04 January 2007 (online)


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 16α-hydroxy-3β-{{{[β-xylopyranosyl-(1→2)]-[β-glucopyranosyl-(1 →4)]-[β-glucopyranosyl-(1→2)]-α-arabinopyranosyl]-oxy]olean-12-eno-30,28-lactone and is named coumoside B.