Triterpene glycosides of the leaves of Eleutherococcus senticosus I. Isolation and general characteristics
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From the leaves ofEleutherococcus senticosus four glycosides of oleanolic acid have been isolated, and they have been called eleutherosides I, K, L, and M. Eleutherosides I and K are biosides whose carbohydrate chains consist of L-arabinose and L-rhamnose residues. Eleutherosides L and M are pentaosides and differ from I and K, respectively, by the fact that they contain a trisaccharide consisting of D-glucose and L-rhamnose attached by an O-acylglycosidic bond to the carboxy group. The absence of branching and of 1,3 bonds in the carbohydrate chains of the eleutherosides has been shown.
KeywordsGlycoside Monosaccharide Oleanolic Acid Carbohydrate Chain Caustic Soda
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