triploside B

3β-[2-O-[3-O-[3-O-[4-O-[3-O-(β-D-Xylopyranosyl)-β-D-xylopyranosyl]-α-L-rhamnopyranosyl]-β-D-xylopyranosyl]-α-L-rhamnopyranosyl]-α-L-arabinopyranosyloxy]olean-12-en-28-oic acid