A new triterpenoid saponin from Albizia julibrissin Durazz

J Asian Nat Prod Res. Jul-Aug 2008;10(7-8):781-5. doi: 10.1080/10286020802031056.

Abstract

A new triterpenoid, saponin hehuanoside A, was isolated together with the known triterpenoid saponins 2, 3, and 4 from the stem bark of Albizia julibrissin. With the help of chemical and spectral analyzes (IR, MS, 1D-NMR, and 2D-NMR), the structure of the new triterpenoid saponin was elucidated as 21-O-[(6S)-2-trans-2,6-dimethyl-6-O-beta-d-quinovopyranosyl-2,7-octadienoyl]-3-O-beta-d-xylopyranosyl-(1 --> 2)-beta-d-fucopyranosyl-(1 --> 6)-beta-d-2-deoxy-2-acetamidoglucopyrasyl acacic acid 28-O-alpha-l-arabinofuranosyl-(1 --> 4)-[-beta-d-glucopyranosyl-(1 --> 3)]-alpha-l-rhamnopyranosyl-(1 --> 2)-beta-d-glucopyranosyl ester (1). Three known triterpenoid saponins 2-4 were identified on the basis of spectroscopic data.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Albizzia / chemistry*
  • Molecular Structure
  • Plant Bark / chemistry
  • Plant Stems / chemistry
  • Saponins / chemistry*
  • Triterpenes / chemistry*

Substances

  • Saponins
  • Triterpenes
  • hehuanoside A