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Complete assignments of 1 H and 13 C NMR data for two new sesquiterpenes from Cyperus rotundus L.
Author(s) -
Xu Yan,
Zhang HongWu,
Wan XiaoChun,
Zou ZhongMei
Publication year - 2009
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.2416
Subject(s) - cyperus rotundus , chemistry , two dimensional nuclear magnetic resonance spectroscopy , nuclear overhauser effect , mythimna separata , nuclear magnetic resonance spectroscopy , heteronuclear single quantum coherence spectroscopy , carbon 13 nmr , rhizome , cyperus , stereochemistry , traditional medicine , botany , lepidoptera genitalia , biology , medicine
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 1 H and 13 C NMR data for two new sesquiterpenes were obtained by the aid of two‐dimensional (2D) NMR techniques, including HSQC, HMBC, 1 H‐ 1 HCOSY and nuclear overhauser enhancement spectroscopy(NOESY). Copyright © 2009 John Wiley & Sons, Ltd.