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Updated: Jun 1, 2026
Cellular Lipid Extraction for Targeted Stable Isotope Dilution Liquid Chromatography-Mass Spectrometry Analysis
Published on: November 17, 2011
3β-Acet-oxy-8β,10β-dihy-droxy-6β-meth-oxy-eremophil-7(11)-en-8,12-olide
Hai-Bo Wu1, Hua Li, Xiao-Cong Lan
1College of Life and Environment Science, Minzu University of China, Beijing 100081, People's Republic of China.
Abstract:
The title compound, C(18)H(26)O(7), is an eremophilenolide which has been isolated from the plant Ligularia duciformis for the first time. The present study confirms the atomic connectivity assigned on the basis of (1)H and (13)C NMR spectroscopy. The mol-ecule contains three fused rings, two six-membered rings in chair confomations and a five-membered ring in a flattened envelope conformation. Two hy-droxy groups are involved in formation of intra- and inter-molecular O-H⋯O hydrogen bonds. The latter ones link mol-ecules into chains propagating in [010].
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