.beta.-D-Glucopyranosiduronic acid, (3b,20b)-20-carboxy-30-noroleana-11,13(18)-dien-3-yl 2-O-b-D-glucopyranuronosyl- 118525-49-8 30-Noroleanane, b-D-glucopyranosiduronic acid deriv. AIDS-002509 AIDS002509 Glycyrrhizin deriv. Licoricesaponin C2 Olean-11,13(18)-diene-3.beta.-ol-30-oic acid 3-O-.beta.-D-glucuronopyranosyl- (1-