Note: A new sesquiterpene ester from the fruits of Celastrus orbiculatus

Abstract

From the fruits of Celastrus orbiculatus Thunb. a new β-dihydroagarofuran sesquiterpene ester named 1β,2β,13-triacetoxy-9α-cinnamoyloxy-β-dihydroagarofuran (1) has been isolated along with two known compounds, 6α-acetoxy-1β,9β-dibenzoyloxy-8β-hydroxy-β-dihydroagarofuran (2), and 1β, 6α-diacetoxy-9β-benzoyloxy-8β-hydroxy-β-dihydroagarofuran (3). Their structures were elucidated on the basis of spectroscopic data.

Keywords:

• Celastrus orbiculatus
• Sesquiterpene ester
• 1β,2β,13-Triacetoxy-9α-cinnamoyloxy-β-dihydroagarofuran

Acknowledgements

Special thanks are due to the Analytical Center, Shenyang Pharmaceutical University for recording UV, MS and NMR spectra. We also thank Professor Yunzheng Guo for the plant identification.