A Further Furostanol Glycoside From Smilax china

A furostanol glycoside, $mp\;190{\sim}198^{\circ}$, was isolated from the MeOH extract of Smilax china rhizomes. The structure was established as a mixture of $26-O-{\beta}-_D-glucopyranosyl-(25R)-22-methoxy-furost-5-en-3\beta,26-diol\;3-O-\alpha-_L-rhamnopyranosyl-(1\rightarrow2)-\beta-_D-glucopyranoside$ and its 22-hydroxy derivative on the basis of spectral data and chemical correlations.