Complete assignments of 1H and 13C NMR data for two new sesquiterpenes from Cyperus rotundus L. |
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| Authors: | Yan Xu Hong‐Wu Zhang Xiao‐Chun Wan Zhong‐Mei Zou |
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| Institution: | 1. Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, P. R. China;2. Key Laboratory of Tea Biochemistry and Biotechnology, Ministry of Agriculture, Anhui Agricultural University, Hefei, Anhui 230036, P. R. China |
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| Abstract: | Two new sesquiterpenes, epi‐guaidiol A (1) and sugebiol (3), together with four known sesquiterpenes, guaidiol A(2), sugetriol triacetate (4), cyperenoic acid (5), and cyperotundone (6) were isolated from the rhizomes of Cyperus rotundus L. Their structures were identified by MS and NMR experiments, and the complete assignments of 1H and 13C NMR data for two new sesquiterpenes were obtained by the aid of two‐dimensional (2D) NMR techniques, including HSQC, HMBC, 1H‐1HCOSY and nuclear overhauser enhancement spectroscopy(NOESY). Copyright © 2009 John Wiley & Sons, Ltd. |
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| Keywords: | NMR 1H NMR 13C NMR 2D NMR Cyperus rotundus L sesquiterpenes |
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