Abstract
A new phenolic glycoside, 6′-[(E)-2″-hydroxymethyl, 2″-butenoyl] arbutin (1), and two known phenolic glycosides, 6′-[(E)-4″-hydroxycinnamoyl] arbutin (2) and 6′-[(E)-3″,4″-dihydroxycinnamoyl] arbutin (3), were isolated from the leaves of Heliciopsis lobata (Merr.) Sleum. Their structures were elucidated by various spectroscopic methods including 2D NMR spectroscopy.
Acknowledgements
This research work was supported by the Foundation of Education Department of Hainan Province, China.