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1. (Article ID: 10471)
 
Sawada H, Miyakoshi M, Isoda S, Ida Y, Shoji J
Saponins from leaves of Acanthopanax sieboldianus
Phytochemistry 34 (1993) 1117-1121
 

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 α-L-rhamnopyranosyl(1→4)-β-D-glucopyranosyl(1→6)- β-D-glucopyranosyl esters of hederagenin and oleanolic acid 3-O-β-D- xylopyranosyl(1→3)-α-L-rhamnopyranosyl(1→2)-α-L-arabinopyranosides, respectively.

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2. (Article ID: 12202)
 
Grishkovets VI, Pyatygin AM, Chirva VY
Triterpene glycosides from leaves of Acanthopanax sieboldianus introduced to Ukraine and Crimea
Chemistry of Natural Compounds 36(3) (2000) 325-326
 

The glycoside composition of A. sieboldianus (Eleutherococcus sieboldianus) leaves collected in Kiev, L'vov, and Simferopol, Ukraine, was studied and compared with that of leaves collected from the natural habitat. Total acid hydrolysis of the leaf extract and TLC analysis of the resulting aglycones showed a large quantity of hederagenin glycosides and a small quantity of oleanolic and echinocystic acid glycosides. The chemical structures of these triterpene glycosides are presented.

glycoside, triterpene glycoside, organic chemistry, Acanthopanax sieboldianus

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