Two new phenylbutanoids from inner bark of Betula pendula

✍ Scribed by Jaana Liimatainen; Jari Sinkkonen; Maarit Karonen; Kalevi Pihlaja

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 102 KB
• Volume: 46
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.2163

✦ Synopsis

Abstract

Two phenylbutanoids, 7‐{3__R__‐[(4‐hydroxyphenyl)butyl] β‐glucopyranosid‐O‐6‐yl} 4‐O‐β‐glucopyranosylvanillin and 3‐β‐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. Copyright © 2007 John Wiley & Sons, Ltd.