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The fluorescence properties and NMR analysis of protopine and allocryptopine |
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| Authors: | Martin Kubala Jan Vacek Marika Janovská Jitka Ulrichová Vilím Šimánek |
| Institution: | a Department of Biophysics, Faculty of Science, Palacký University, tr. 17. listopadu 12, CZ-77146 Olomouc, Czech Republic b Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, CZ-77515 Olomouc, Czech Republic c Department of Inorganic Chemistry, Faculty of Science, Palacký University, tr. 17. listopadu 12, CZ-77146 Olomouc, Czech Republic |
| Abstract: | The fluorescence properties of protopine and allocryptopine in aqueous and organic environments are described for the first time. The fluorescence of alkaloids and their pH-dependent interconversion to cationic forms (transannular interaction) were studied using steady-state and time-resolved fluorescence techniques. For the analysis of tricyclic base and cis/trans tetracyclic cations of the alkaloids, NMR and X-ray crystallography were used. |
| Keywords: | Protopine Allocryptopine Fluorescence Isomers NMR X-ray crystallography |
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