Abstract
Two new C13-norsesquiterpenes claulanterpene A (1) and B (2), together with two known sesquiterpenes (3–4), were isolated from methanol extract of the stem and leaf of Clausena lansium collected from Qingyuan county, Guangdong Province, China. Their structures were elucidated on the base of extensive spectroscopic analysis and comparison with data reported in the literature. Among them, compound 4 showed antibacterial activity against Bacillus cereus.
Acknowledgements
We have a special thanks to Professor Zhang Zhi-Yong (a botanist of College of Agriculture, Jiangxi Agricultural University, Nanchang, China) for the collection and identification of C. lansium.
Disclosure statement
No potential conflict of interest was reported by the authors