A new lignan glycoside from Trigonostemon heterophyllus

Abstract

Phytochemical investigation on the stems of Trigonostemonheterophyllus led to the isolation of a new lariciresinol-based lignan glycoside, trigonoheteran (1), together with a known lignan glycoside, aviculin (2). Their structures were elucidated by spectroscopic methods including 1D and 2D NMR (HMQC, ¹H–¹H COSY, HMBC, and NOESY).

Keywords::

• Euphorbiaceae
• Trigonostemonheterophyllus
• lignan glycoside
• trigonoheteran

Acknowledgments

This research was financially supported by Special Fund for Agro-scientific Research in the Public Interest (201303117), National Support Science and Technology Subject (2013BAI11B04), and Major Technology Project of Hainan Province (ZDZX2013008-4).