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A new dihydroflavonol from Pinus sylvestris L.
Author(s) -
Sinkkonen Jari,
Liimatainen Jaana,
Karonen Maarit,
Pihlaja Kalevi
Publication year - 2005
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1552
Subject(s) - chemistry , two dimensional nuclear magnetic resonance spectroscopy , heteronuclear single quantum coherence spectroscopy , fast atom bombardment , mass spectrometry , bark (sound) , nuclear magnetic resonance spectroscopy , acetone , stereochemistry , spectroscopy , organic chemistry , chromatography , physics , quantum mechanics , acoustics
Abstract A novel dihydroflavonol, C‐6 , O‐7 ‐dimethylaromadendrin, was isolated from a 70% aqueous acetone extract of pine ( Pinus sylvestris L.) bark. Its structure was determined by high‐resolution negative fast atom bombardment mass spectrometry and NMR spectroscopy. The complete assignment of proton and carbon signals was achieved by 2D NMR experiments: HSQC, HMBC, DQF‐COSY and NOESY. Copyright © 2005 John Wiley & Sons, Ltd.