A new tetranortriterpenoid from the roots of Atalantia buxifolia

Abstract

A new tetranortriterpenoid, named 6-deacetyl-severinolide (1), together with six known tetranortriterpenoids severinolide (2), acetyl-isoepiatalantin (3), 7-isovaleroylcycloepiatalantin (4), cycloepiatalantin (5), 7-isovaleroylcycloseverinolide (6), and atalantin (7), was isolated from the ethanol extract of the roots of Atalantia buxifolia collected in Hainan. Their structures were elucidated by spectroscopic methods including 1D and 2D NMR (HMQC, ¹H–¹H COSY, HMBC, and NOESY).

Keywords:

• Atalantia buxifolia
• tetranortriterpenoid
• 6-deacetyl-severinolide

Acknowledgment

This research was financially supported by National Nonprofit Institute Research Grant of CATAS-ITBB (No. ITBBZD0742).

Notes

1. These authors contributed equally to this work.

Additional information

Notes on contributors

Tao Yang

1

Yan-Bo Zeng

1