Triterpene glycosides ofHedera taurica XV. Structures of glycosides St-I3, St-I4a, St-I4b, and St-I5 from the stems of Crimean ivy |
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Authors: | V. I. Grishkovets O. Ya. Tsvetkov S. V. Godin A. S. Shashkov V. Ya. Chirva |
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Abstract: | From the stems of Crimean ivyHedera taurica Carr. (fam. Araliaceae) we have isolated the new triterpene glycosides St-I3, St-I5, and St-I4a, which are, respectively, the 3–0--D-glucopyranoside 28-O-[O--L-rhamnopyranosyl-(14)-O-(6-O-acetyl--D-glucopyranosyl)-(16)-O--D-glucopyranosides] of oleanolic acid and of hederagenin and the 3-O--D-glucopyranuronoside 28-O--gentiobioside of oleanolic acid, and also the previously known 3-O-[O--D-galactopyranosyl-(12)--D-glucopyranuronoside 28-O--D-glucopyranoside] of oleanolic acid (glycoside Rb-4).Simferopol' State University. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 404–410, May–June, 1997. |
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