Abstract
The complete (1)H, (13)C and (15)N 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 gamma-lactam derivative.
Copyright (c) 2009 John Wiley & Sons, Ltd.
MeSH terms
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Aesculus / chemistry*
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Alkaloids / analysis*
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Chromatography, High Pressure Liquid
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Honey / analysis*
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Kynurenic Acid / analogs & derivatives*
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Kynurenic Acid / analysis
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Kynurenic Acid / chemistry
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Magnetic Resonance Spectroscopy
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Models, Molecular
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Pyrrolidines / analysis*
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Pyrrolidines / chemistry
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Quinolines / analysis*
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Spectrometry, Mass, Electrospray Ionization
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Spectrophotometry, Ultraviolet
Substances
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3-(2'-pyrrolidinyl)-kynurenic acid
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Alkaloids
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Pyrrolidines
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Quinolines
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Kynurenic Acid