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Structural determination of flavonoids from Sorphora flavescens
Author(s) -
Ma XiaoChi,
Xin XiuLan,
Zhang BaoJing,
Li FengYun,
Liu KeXin,
Guo DeAn
Publication year - 2008
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.2281
Subject(s) - flavanone , chemistry , sophora flavescens , stereochemistry , two dimensional nuclear magnetic resonance spectroscopy , spectral analysis , flavonoid , organic chemistry , chromatography , spectroscopy , antioxidant , matrine , physics , quantum mechanics
Eight flavonoids were isolated from Sophora flavescens . Among them, three prenylflavanones: (2 S )‐6[2(3‐hydroxyisopropyl)‐5‐methyl‐4‐hexenyl]‐5‐methoxy‐7,2′, 4′‐trihydroxyflavanone (1), (2 S )‐5, 4′‐dimethoxy‐8‐lavandulyl‐7, 2′‐dihydroxy flavanone (2) and (2 S )‐8‐(5‐hydroxy‐2‐isopropenyl‐5‐methylhexyl)‐7‐methoxy‐5,2′, 4′‐trihydroxyflavanone (3) are new compounds. Their chemical structures were determined by spectral methods including 2D NMR. Copyright © 2008 John Wiley & Sons, Ltd.