三七花蕾中黄酮类成分的分离与结构鉴定

摘要

Two flavonoids were isolated from buds of Panax notoginseng (Burk.) F.H.Chen by silica gel and preparative thin layer chromatography,and identified as kaempferol-3-O-α-L-rhamnoside (1) and kaempferol-3-O- (2″,3″-di-E-p-coumaroyl)-α-L-rhamnoside (2) by physicochemical properties and spectroscopic data.Both compounds were first reported from buds of Panax notoginseng.%通过硅胶柱层析,制备性薄层色谱分离,从三七花蕾中分离得到2个黄酮化合物,依据理化性质及光谱数据鉴定为山奈酚-3-O-α-L-鼠李糖甙(1)和山奈酚-3-O-(2″,3”-二反式对羟基桂皮酰基)-α-L-鼠李糖甙(2).这两个黄酮均首次从该植物中分离得到.