Triterpenoid glycosides of Fatsia japonica.: II.: Isolation and structure of glycosides from the leaves

The previously known triterpenoid 3-O-alpha -L-arabinopyranosides of oleanolic and echinocystic acids and hederagenin, 3-O-beta -D-glucopyranosyl-(1 -->2)-O-alpha -L-arabinopyranosides of oleanolic acid and hederagenin, in addition to 28-O-alpha -L-rhamnopyranosyl-(1 -->4)-O-beta -D-glucopyranosyl-(1-6)-O-beta -D-glucopyranosyl ethers of the 3-O-alpha -L-arabinopyranoside of hederagenin, and 3-O-beta -D-glucopyranosyl-(1 -->2)-O-alpha -L-arbinopyranosides of oleanolic acid and hederagenin, respectively, are isolated from leaves of Fatsia japonica (Araliaceae). The structures of the glycosides are confirmed by chemical Methods and (CNMR)-C-13 spectroscopy.