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PMR and 13C NMR Spectra of Biologically Active Compounds. XII. Taraxasterol and Its Acetate from the Aerial Part of Onopordum acanthium |
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| Authors: | L. M. Khalilov A. Z. Khalilova E. R. Shakurova I. F. Nuriev V. V. Kachala A. S. Shashkov U. M. Dzhemilev |
| Affiliation: | (1) Academy of Sciences of the Republic of Bashkortostan and Ufa Scientific Center, Russian Academy of Sciences, Institute of Petroleum Chemistry and Catalysis, Russia;(2) Russian Academy of Sciences, N. D. Zelinskii Institute of Organic Chemistry, Russia |
| Abstract: | Crystalline taraxasterol and its acetate were isolated for the first time from Onopordum acanthium. Two-dimensional COSY, HSQC, and HMBC NMR experimentswere carried out forcomplete assignment of signals in the PMR and 13C NMR. Chemical shifts of stereochemically important methyl C atoms C-28 and C-29 were measured. |
| Keywords: | Onopordum acanthium L. two-dimensional spectrum PMR 13C NMR HSQC HMBC COSY TOCSY ROESY spectra |
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