3-O-(glucopyranosyl-(1-2))-(arabinopyranosyl-(1-3))-(arabinofuranosyl-(1-4))-glucuronopyranosyl-21-O-beta,beta-dimethylacryloyl-22-O-angeloyl-R1-barrigenol
3-o-(glucopyranosyl-(1-2))-(arabinopyranosyl-(1-3))-(arabinofuranosyl-(1-4))-glucuronopyranosyl-21-o-beta,beta-dimethylacryloyl-22-o-angeloyl-r1-barrigenol