[Triterpene glycosides from Hedera taurica. XIII. Structure of taurosides St-I1 and St-I2 from Crimean ivy stems].

The taurosides, St-I1 and St-I2, isolated from the stems of Crimean ivy Hedera taurica Carr. (Araliaceae), were shown to be the known glycoside, 3-O-[beta-D-glucopyranosyl-(1-->2)-O-alpha-L-arabinopyranosyl]-28- O-[alpha-L-rhamnopyranosyl-(1-->4)-O-beta-D-glucopyranosyl-(1-->6)-O-bet a-D- glucopyranosyl]hederagenin, and a new glycoside, 3-O-[alpha-L-rhamnopyranosyl-(1-->2)-O-beta-D-glucopyranosyl]-28-O-[a lpha -L-rhamnopyranosyl-(1-->4)-O-beta-D-glucopyranosyl-(1-->6)-O-beta-D- glucopyranosyl]hederagenin, respectively.