Synonyms: b-D-Glucopyranosiduronic acid, [3b,4b,16a,21b(Z),22a]-21-[[4-O-acetyl-6-deoxy-3-O-(2-methyl-1-oxo-2-butenyl)-b-D-galactopyranosyl]oxy]-22-(acetyloxy)-16,23,28-trihydroxyolean-12-en-3-yl2-O-b-D-glucopyranosyl-; Oleanane, b-D-glucopyranosiduronic acidderiv.; Bunkankasaponin A