Abstract
A new phenolic glycoside, sinapic acid 4-O-β-d-(6′-sinapoyl)glucopyranoside (1) and a new sucrose ester, 6,6′-di-O-sinapoylsurcose (3), were isolated from the roots of Cynanchum amplexicaule (Sieb. et Zucc.), along with two known compounds, 6-O-[E]-sinapoyl-d-glucopyranoside (2) and sibricose A1 (4). Their structures were elucidated on the basis of both chemical and spectroscopic methods.
Acknowledgements
This research work was financially supported by the National Natural Science Foundation of China, Project NO. 30672612.