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3β-[(O-β-D-ribopyranosyl-(1->3)-O-α-L-rhamnopyranosyl-(1->2)-α-L-arabinopyranosyl)oxy]-23-hydroxyolean-12-en-28-oic acid O-β-D-glucopyranosyl-(1->3)-O-α-L-rhamnopyranosyl-(1->4)-O-β-D-glucopyranosyl-(1->6)-β-D-glucopyranosyl ester


