A New Steroidal Glycoside from Roots of Cynanchum wallichii

One new and three known steroidal glycosides were isolated from the ethyl acetate extract of the roots of Cynanchum wallichii Wight. Their structures were characterized as qinyangshengenin-3-O-α-Lcymaropyranosyl-(1→4)-β-D-oleandropyranosyl-(1→4)-β-D-cymaropyranosyl-(1→4)-β-Ddigitoxopyranoside (1), otophylloside A (2), otophylloside B (3), and cynanauriculoside A (4).