Rodrigues ED, da Silva DB, de Oliveira DCR, da Silva GVJ. DOSY NMR applied to analysis of flavonoid glycosides from Bidens sulphurea.
MAGNETIC RESONANCE IN CHEMISTRY : MRC 2009;
47:1095-1100. [PMID:
19768723 DOI:
10.1002/mrc.2516]
[Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
2D DOSY 1H NMR has proved to be a useful technique in the identification of the molecular skeleton of the four major compounds of ethyl acetate extract of aerial parts of Bidens sulphurea (Asteraceae). The combination of this technique with HPLC, mass spectrometry and other NMR techniques enabled the identification of four flavonoid glycosides: quercetin-3-O-beta-D-galactopyranoside, quercetin-3-O-beta-D-glycopyranoside, quercetin-3-O-alpha-L-arabinofuranoside and quercetin-3-O-beta-D-rhamnopyranoside.
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