• Title/Summary/Keyword: $^{13}C-^1H$ long range coup-ling

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Determination of the Structure for Polysubstituted Flavonoid and 6-C-Glucosyl Flavonoids using $^{13}C-^{1}H$ Long Range Couplings

  • Lee, Min-Won
    • Archives of Pharmacal Research
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    • v.17 no.6
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    • pp.487-489
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    • 1994

  • A flavone glycoside was isolated from the leaves of Betula platyphylla var. latifolia and characterized as $4, 6-Dimethoxy-5-hydroxyflavone-7-O-{\beta}-D-glucoside(pectolinarigenin-7-O-{\beta}-D-glucopy-ranoside)$ 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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