Triterpenoid saponins from Neonauclea sessilifolia Merr.

Abstract

Two new triterpenoid saponins, quinovic acid 3-O-6-deoxy-β-d-glucopyranoside, 28-β-d-glucopyranosyl ester and quinovic acid 3-O-α-l-rhamnopyranosyl-(4→1)-β-d-glucopyranoside, along with three known saponins, have been isolated from the EtOAc extracts of the dried stems of N. sessilifolia Merr. Structure elucidation of 1–3 was based on NMR, MS, IR and chemical analysis.

Keywords:

• Neonauclea sessilifolia Merr.
• Triterpenoid saponins
• Structure elucidation

Acknowledgements

We thank the staff of the analytical group of the Kunming Institute of Botany, Chinese Academy of Sciences for measuring spectra.