Schisanlactone H and sphenanthin A, new metabolites from Schisandra sphenanthera

Abstract

From the fruits of Schisandra sphenanthera (Schisandraceae), a new 3,4-seco-lanostane triterpenoid, schisanlactone H (1), and a new monocyclofarnesane sesquiterpenoid, sphenanthin A (2), were isolated. Their structures were elucidated by spectroscopic methods including extensive 1D and 2D NMR techniques.

Keywords:

• Schisandraceae
• Schisandra sphenanthera
• schisanlactone H
• sphenanthin A

Acknowledgements

This work was supported by the Foundation for the Author of National Excellent Doctoral Dissertation of China (200780), the New Century Excellent Talents on University (NCET-06-0824), and the Young Academic and Technical Leader Raising Foundation of Yunnan Province (No. 2005py01-32).