A new compound against Peries rapae from Stellera chamaejasme

Abstract

The ethanol extract of Stellera chamaejasme roots exhibited significant bioactivity against Peries rapae. In the course of a search for the active compounds, S-(+)-1,5-diphenly-3-hydroxy-1-pentanone (1) was isolated and this compound has never been found before in S. chamaejasme as far as we known. The structure was established on the basis of various spectral data, including IR, UV, ¹H NMR, ¹³C NMR, EIMS, and chemical synthesis. Mortality against P. rapae was also determined.

Keywords:

• Stellera chamaejasme
• Peries rapae
• Bioactivity

Acknowledgements

We are grateful to Chengdu Branch of Chinese Academy of Science for performing MS, IR, and NMR and Grassland Research Station, Ruoergai, China, for providing S. chamaejasme. This work was supported by National Natural Science Foundation of China (Nos 20372052 and 20572076) and Hi-tech Research and Development Program of China (No. 2006AA10A209).