Two new phenylbutanoids from inner bark of Betula pendula |
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| Authors: | Liimatainen Jaana Sinkkonen Jari Karonen Maarit Pihlaja Kalevi |
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| Institution: | Laboratory of Organic Chemistry and Chemical Biology, Department of Chemistry, University of Turku, Vatselankatu 2, FI-20014 Turku, Finland. jaana.liimatainen@utu.fi |
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| Abstract: | Two phenylbutanoids, 7-{3R-(4-hydroxyphenyl)butyl] beta-glucopyranosid-O-6-yl} 4-O-beta-glucopyranosylvanillin and 3-beta-glucopyranosyloxy-1-(4-hydroxyphenyl)-butanone were isolated from an aqueous methanol extract of the inner bark of Betula pendula. Their structures were determined by NMR spectroscopy and mass spectrometry. The complete assignment of proton and carbon signals was achieved by 1D and 2D NMR experiments: selective 1D TOCSY, HSQC, HMBC and DQF-COSY. |
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| Keywords: | NMR 1H NMR 13C NMR 1D NMR 2D NMR Phenylbutanoid Betula pendula |
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