Structure elucidation and NMR assignments of two new pyrrolidinyl quinoline alkaloids from chestnut honey |
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| Authors: | Giangiacomo Beretta Giulio Vistoli Enrico Caneva Cecila Anselmi Roberto Maffei Facino |
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| Affiliation: | 1. Department of Pharmaceutical Sciences ‘Pietro Pratesi’, University of Milan, via Mangiagalli 25, 20133 Milan, Italy;2. CIGA ‐ Centro Interdipartimentale Grandi Apparecchiature, University of Milan, via Golgi 19, 20133 Milan, Italy;3. Centro Interdipartimentale di Scienza e Tecnologia Cosmetiche, University of Siena, Via della Diana 2, 53100 Siena, Italy |
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| Abstract: | The complete 1H, 13C and 15N NMR spectral assignments of two new alkaloids isolated from chestnut honey and structurally related to kynurenic acid have been made using 1‐D and 2‐D NMR techniques, including COSY, HMQC and HMBC experiments. The new compounds have been identified as 3‐(2′‐pyrrolidinyl)‐kynurenic acid and its γ‐lactam derivative. Copyright © 2009 John Wiley & Sons, Ltd. |
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| Keywords: | pyrrolidinyl quinoline alkaloids kynurenic acid honey |
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