ACYLATED FLAVONOL GLYCOSIDES FROM CABBAGE LEAVES

被引:74
作者
NIELSEN, JK
OLSEN, CE
PETERSEN, MK
机构
[1] Chemistry Department, Royal Veterinary and Agricultural University, DK-1871 Frederiksberg C
关键词
BRASSICA-OLERACEA; CRUCIFERAE; CABBAGE; FLAVONOL GLYCOSIDES; ACYLATED; CAFFEOYL; P-COUMAROYL; FERULOYL; SINAPOYL;
D O I
10.1016/0031-9422(93)80042-Q
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
Seven flavonol glycosides were isolated from a leaf extract of cabbage and characterized by chemical and spectroscopic methods including H-1 and C-13 NMR and negative ion FAB-MS. Five compounds were new natural products or were fully characterized for the first time. They are derivatives of kaempferol-3-O-beta-D-sophoroside-7-O-beta-D-glucoside acylated at C-2''' with either caffeic acid, p-coumaric acid or ferulic acid, and of quercetin-3-O-beta-D-sophoroside-7-O-beta-D-glucoside acylated with either caffeic acid or ferulic acid. Kaempferol-3-O-beta-D-sophoroside-7-O-beta-D-glucoside and kaempferol-3-O-beta-D-(2-sinapoylsophoroside)-7-O-beta-D-glucoside were found for the first time in cabbage, but they have previously been found in other Brassica species.
引用
收藏
页码:539 / 544
页数:6
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