Yoshikawa M, Harada E, Matsuda H, Murakami T, Yamahara J, Murakami N
Kyoto Pharmaceutical University, Japan.
Chem Pharm Bull (Tokyo). 1993 Nov;41(11):2069-71. doi: 10.1248/cpb.41.2069.
By monitoring the inhibitory effect on ethanol absorption in rats, new active saponins named elatosides A and B were isolated from the bark of Aralia elata Seem. together with elatosides C and D. The structures of elatosides A, B, C, and D were elucidated on the basis of chemical and physicochemical evidence. The inhibitory effects of several oleanolic acid oligoglycosides on ethanol absorption have been examined and some structure-activity relationships have been found.