Phenolic glycosides from leaves of Hopiciopsis lobata

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.

Keywords:

• Heliciopsis lobata (Merr.) Sleum
• Proteaceae
• 6′-[(E)-2″-Hydroxymethyl, 2″-butenoyl] arbutin
• 6′-[(E)-4″-Hydroxycinnamoyl] arbutin
• 6′-[(E)-3″, 4″-Dihydroxycinnamoyl] arbutin

Acknowledgements

This research work was supported by the Foundation of Education Department of Hainan Province, China.