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Abstract
A new guaiane-type sesquiterpenoid ethoxyvalerianol (1) and one known sesquiterpenoid valeranone (2) together with selina-4,7(11)-diene (3) and selinene (4), which were obtained from (+)-maaliol (5) by decyclization and dehydration, were isolated from Valeriana tangutica. Their structures were elucidated by 1D- and 2D-NMR spectroscopic data and HR-ESI-MS analysis.
Acknowledgements
The work was supported by the National 863 Program of China (No. 2007AA09Z403), and National Key Technology Research and Development Program of China (No. 2007BAI37B05), and Natural Science Foundation of Gansu Province (No. 0710RJZA120).