3β,22β-dihydroxy-3-O-[α-L-rhamnopyranosyl-(1-> 2)-β-D-glucuronopyranosyl]olean-12-en-28-oic acid 28-O-β-D-glucopyranosyl ester

3-O-[α-L-rhamnopyranosyl-(1-> 2)-β-D-glucuronopyranosyl]oleanolic acid 28-O-β-D-glucopyranosyl ester