Saponins from leaves of Acanthopanax sieboldianus

  • Phytochemistry. 1993 Nov;34(4):1117-21. doi: 10.1016/s0031-9422(00)90727-1.
H Sawada  1 ,  M Miyakoshi ,  S Isoda ,  Y Ida ,  J Shoji
Affiliations
  • 1. School of Pharmaceutical Sciences, Showa University, Tokyo, Japan.
PMID: 7764238 DOI: 10.1016/s0031-9422(00)90727-1
Abstract

Two new triterpenoid saponins named sieboldianoside A and B were isolated from the leaves of Acanthopanax sieboldianus together with five known triterpenoid saponins, kalopanax-saponins A and B, saponin A, CP3, sapindoside B, and a known flavonol glycoside, kaempferol 3-O-rutinoside. On the basis of chemical and spectral evidence, the structures of the new saponins (sieboldianoside A and B) were concluded to be alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl(1-->6)- beta-D-glucopyranosyl esters of hederagenin and oleanolic acid 3-O-beta-D- xylopyranosyl(1-->3)-alpha-L-rhamnopyranosyl(1-->2)-alpha-L-arabinopy ranosides, respectively.

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