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A novel acylated flavonol glycoside isolated from Brunfelsia grandiflora ssp. grandiflora. Structure elucidation by gradient accelerated NMR spectroscopy at 14T

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Published in Phytochemical Analysis. 2000, vol. 11, no. 1, p. 29-33
Abstract Kaempferol‐3‐O‐[6Glc‐O‐feruloyl]‐β‐D‐glucopyranosyl‐(1→2)‐O‐[α‐L‐rhamnopyranosyl‐(1→6)]‐β‐D‐galactopyranoside (1) was isolated from the aerial parts of Brunfelsia grandiflora ssp. grandiflora. The structure of this novel flavonol glycoside was established by fast atom bombardment‐mass spectrometry and by means of NMR spectroscopy at 14T, using two‐dimensional NMR experiments with pulsed‐field gradients for coherence selection. The presence of the constituent aglycones and sugar units of 1 was confirmed independently by acid hydrolysis.
Keywords Gradient accelerated NMR spectroscopySouth American SolanaceaeBrunfelsia grandiflora
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BRUNNER, Gerhard et al. A novel acylated flavonol glycoside isolated from Brunfelsia grandiflora ssp. grandiflora. Structure elucidation by gradient accelerated NMR spectroscopy at 14T. In: Phytochemical Analysis, 2000, vol. 11, n° 1, p. 29-33. https://archive-ouverte.unige.ch/unige:106514

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Deposited on : 2018-07-19

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