Acylated flavone C-glycosides from Cucumis sativus

被引:65
作者
Abou-Zaid, MM
Lombardo, DA
Kite, GC
Grayer, RJ
Veitch, NC
机构
[1] Nat Resources Canada, Canadian Forest Serv, Great Lakes Forestry Ctr, Sault St Marie, ON P6A 5M7, Canada
[2] Royal Bot Gardens, Jodrell Lab, Richmond TW9 3DS, Surrey, England
关键词
Cucumis sativus; Cucurbitaceae; cucumber; acylated flavone C-glycosides;
D O I
10.1016/S0031-9422(01)00156-X
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Leaves of Cucumis sativus plants treated with silicon and infected with Sphaerotheca yielded five new acylated flavone C-glycosides identified as isovitexin 2 " -O-(6 ' ' '-(E)-p-coumaroyl)glucoside (6), isovitexin 2 " -O-(6 ' ' '-(E)-p-coumaroyl)glucoside-4 ' -O-glucoside (7). isovitexin 2 " -O-(6 ' ' '-(E)-feruloyl)glucoside-4 ' -O-glucoside (11). isoseoparin 2 " -O-(6 ' ' '-(E)-p-coumaroyl)glucoside (9). and isoscoparin 2 " -O-(6 ' ' '-(E)-feruloyl)glucoside-4 ' -O-glucoside (12). The known flavone-glycosides isovitexin (1). saponarin (2), saponarin 4 ' -O-glucoside (3), vicenin-2 (4), apigenin 7-O-(6 " -O-p-coumaroylglucoside) (5), isovitexin 2 " -O-(6 ' ' '-(E)-feruloyl)glucoside (8) and isoscoparin 2 " -O-(6 ' ' '-(E)-feruloyl)glucoside (10). were also identified in this plant material. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:167 / 172
页数:6
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