Abstract
A flavone glycoside was isolated from the leaves ofBetula platyphylla var.latifolia and chracterized as 4′,6-Dimethoxy-5-hydroxyflavone-7-O-β-D-glucoside(pectolinarigenin-7-O-β-D-glucopyranoside) by method of chemical and NMR spectral analysis.13C-1H long range coupling was confirmative for determination of its substituted position. In connection with this study, 6-C-Glucosylnalingenin and 6-C-Glucosylaromadendrin were confirmed its structures using this technique.
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Lee, MW. Determination of the structure for polysubstituted flavonoid and 6-C-glucosyl flavonoids using13C-1H long range couplings. Arch. Pharm. Res. 17, 487–489 (1994). https://doi.org/10.1007/BF02979132
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DOI: https://doi.org/10.1007/BF02979132