Accurate assignments in PMR and 13C NMR spectra of anhydrolycoctonine using 2D spectroscopy |
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| Authors: | A. A. Balandina Sh. K. Latypov E. D. Khairitdinova E. M. Tsyrlina L. V. Spirikhin M. S. Yunusov |
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| Affiliation: | (1) A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan’ Scientific Center, Russian Academy of Sciences, 420088 Kazan’, ul. Akad. Arbuzova, 8, Russia;(2) Institute of Organic Chemistry, Ufa Scientific Center, Russian Academy of Sciences, 450054 Ufa, prosp. Oktyabrya, 71, Russia |
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| Abstract: | Resonances in PMR and 13C NMR spectra of anhydrolycoctonine were fully assigned based on a series of 1D and 2D NMR experiments. The conformation of ring A was concluded to be a distorted boat with H-1β from a comprehensive analysis of chemical shifts, SSCC, and the NOE for two possible conformations. __________ Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 267–269, May–June, 2008. |
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| Keywords: | norditerpene alkaloids anhydrolycoctonine 1D and 2D NMR |
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