Complete assignments of 1H and 13C NMR spectroscopic data for two new triterpenoid saponins from Ilex hainanensis |
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| Authors: | Zhou Sixiang Yang Junshan Liu Fucheng Tu Pengfei |
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| Institution: | School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100083, People's Republic of China. |
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| Abstract: | Two novel unsaturated E-ring pentacyclic triterpenoid saponins, ilexhainanoside A and ilexhainanoside B, were isolated from the leaves of Ilex hainanensis. Their chemical structures were determined by MS, NMR spectroscopy and chemical analysis. Complete assignments of the 1H and 13C NMR spectroscopic data were achieved by 1D and 2D NMR experiments (HSQC, HMBC, ROESY and 1H-1H COSY). |
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| Keywords: | NMR 1H NMR 13C NMR 1D NMR 2D NMR Ilex hainanensis triterpenoid saponin ilexhainanoside A ilexhainanoside B |
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