152464-76-1 3-O-beta-Glucopyranosyl-1-3-ribopyranosyl-1-3-rhamnopyranosyl-1-2-arabinopyranosylhederagenin 28-O-rhamnopyranosyl-1-4-glucopyranosyl-1-6-glucopyranoside Hupehensis saponin E Saponin E, hupehensis