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Complete assignments of 1H and 13C NMR resonances of oleanolic acid, 18α‐oleanolic acid,ursolic acid and their 11‐oxo derivatives |
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| Abstract: | Complete assignments of 1H and 13C NMR chemical shifts for oleanolic acid, 18α‐oleanolic acid, ursolic acid and their 11‐oxo derivatives based on 1H, 13C, 2D DQF‐COSY, NOESY, HSQC, HMBC and HSQC‐TOCSY experiments were achieved. Copyright © 2003 John Wiley & Sons, Ltd. |
| Keywords: | NMR 1H NMR 13C NMR 2D NMR oleanolic acid 11‐oxooleanolic acid 18α ‐oleanolic acid 11‐oxo‐18α ‐oleanolic acid ursolic acid 11‐oxoursolic acid |