Four new triterpene glycosides from Schefflera bodinieri roots

Four novel triterpene glycosides named bodinitins A (1), B (2), C (3), and D (4) were isolated from the roots of Schefflera bodinieri. Based on spectroscopic data, especially H-1-H-1 COSY and C-13-H-1 COSY NMR, the structures of the glycosides have been determined as 28-O-[alpha-L-rhamopyranosyl-(1-->4)-O-beta-D-glucopyranosyl-(1-->6)]-beta-D-glucopyranoside of demethylisoaleuritolic acid (1), 28-O-[alpha-L-rhamopyranosyl(1-->4)-O-beta-D-glucopyranosyl(1-->6)]-beta-D-glucopyranoside of isoaleuritolic acid (2), 28-O-[alpha-L-rhamnopyranosyl(1-->4)-O-beta-D-glucopyranosyl(1-->6)]-beta-D-glucopyranoside of 3-oxo-8-demethylisoaleuritolic acid (3), and 28-O-[alpha-L-rhamopyranosyl(1-->4)-O-beta-D-glucopyranosyl(1-->6)]-beta-D-glucopyranoside of 3-oxoisoaleuritolic acid (4).