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

Authors
Brunner, G Burger, U Castioni, P Kapetanidis, I Christen, P
Citation
G. Brunner et al., A novel acylated flavonol glycoside isolated from Brunfelsia grandiflora ssp grandiflora. Structure elucidation by gradient accelerated NMR spectroscopy at 14T, PHYTOCH AN, 11(1), 2000, pp. 29-33
Citations number
20
Categorie Soggetti
Plant Sciences
Journal title
PHYTOCHEMICAL ANALYSIS
ISSN journal
09580344 → ACNP
Volume
11
Issue
1
Year of publication
2000
Pages
29 - 33
Database
ISI
SICI code
0958-0344(200001/02)11:1<29:ANAFGI>2.0.ZU;2-F
Abstract
Kaempferol-3-O-[6(Glc)-O-feruloyl]-beta-D-glucopyranosyl-(1-->2)-O-[alpha-L -rhamnopyranosyl-(1-->6)]-beta-galactopyranoside (1) was isolated from the aerial parts of Brunfelsia grandiflora ssp. grandiflora, The structure of t his 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 p resence of the constituent aglycones and sugar units of 1 was confirmed ind ependently by acid hydrolysis, Copyright (C) 2000 John Wiley & Sons, Ltd.