Abstract
A new caryolane sesquiterpene, 1β-methoxycaryol-9-one (1), along with eight known compounds (2–9), was isolated from the whole plant of Heteropappus altaicus. The structures were elucidated on the basis of comprehensive 1D- and 2D-NMR analysis and high-resolution mass spectrometry. The 13C-NMR data of compound 2 are reported for the first time.
Acknowledgements
This study was financially supported by the National Natural Science Foundation of China (no. 20902082), Zhejiang Provincial Natural Science Foundation of China (no. Y3100416) and Zhejiang Provincial Top Academic Discipline of Applied Chemistry and Eco-Dyeing and Finishing Engineering (no. ZYG2010020).