Steroidal saponins from Smilax excelsa rhizomes

Nat Prod Res. 2009;23(10):916-24. doi: 10.1080/14786410802624827.

Abstract

From the n-butanol soluble fraction of the methanol extract of the rhizomes of Smilax excelsa, three new furostanol saponins 3-O-[4-O-acetyl-alpha-L-rhamnopyranosyl-(1 --> 2)-{alpha-L-rhamnopyranosyl-(1 --> 4)}-beta-D-glucopyranosyl]-26-O-[beta-D-glucopyranosyl]-22alpha-hydroxy-(25R)-furost-5-ene-3beta,26-diol (1), 3-O-[2-O-acetyl-alpha-L-rhamnopyranosyl-(1 --> 2)-{alpha-L-rhamnopyranosyl-(1 --> 4)}-beta-D-glucopyranosyl]-26-O-[beta-D-glucopyranosyl]-22alpha-hydroxy-(25R)-furost-5-ene-3beta,26-diol (2), 3-O-[3-O-acetyl-alpha-L-rhamnopyranosyl-(1 --> 2)-{alpha-L-rhamnopyranosyl-(1 --> 4)}-beta-D-glucopyranosyl]-26-O-[beta-D-glucopyranosyl]-22alpha-hydroxy-(25R)-furost-5-ene-3beta,26-diol (3), and three known saponins: protodioscin (4), pseudoprotodioscin (5) and dioscin (6) were isolated.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Magnetic Resonance Spectroscopy
  • Molecular Structure
  • Rhizome / chemistry*
  • Saponins / chemistry
  • Saponins / isolation & purification*
  • Smilax / chemistry*
  • Steroids / chemistry
  • Steroids / isolation & purification*

Substances

  • Saponins
  • Steroids