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藏药甘青乌头化学成分研究

Keywords: 甘青乌头,化学成分,苯丙素,黄酮,木脂素

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Abstract:

对甘青乌头Aconitumtanguticum全草的化学成分进行研究。应用硅胶,ODS,SephadexLH-20,制备HPLC等各种色谱技术进行分离纯化,采用MS,NMR等波谱技术鉴定化合物结构。甘青乌头乙醇总提取物经石油醚、乙酸乙酯萃取后的剩余水溶液经AB-8大孔吸附树脂,依次用水,30%,60%,95%乙醇洗脱,合并回收溶剂分别得到各洗脱部分。从30%,60%乙醇洗脱部分共分离得到19个化合物,分别鉴定为紫丁香苷(1),香草酸4-O-β-D-阿洛糖苷(2),阿魏酸4-O-β-D-阿洛糖苷(3),阿魏酸4-O-β-D-葡萄糖苷(4),芥子酸4-O-β-D-葡萄糖苷(5),4-羟基-肉桂醇-4-O-β-D-葡萄糖苷(6),槲皮素-3-O-α-L-鼠李糖基-(1→2)-[α-L-鼠李糖基-(1→6)]-β-D-半乳糖苷-7-O-α-L-鼠李糖苷(7),山柰酚-3-O-α-L-鼠李糖基-(1→2)-[α-L-鼠李糖基-(1→6)]-β-D-半乳糖苷-7-O-α-L-鼠李糖苷(8),槲皮素-3-O-α-L-鼠李糖基(1→6)-β-D-半乳糖苷-7-O-α-L-鼠李糖苷(9),山柰酚-3-O-[β-D-葡萄糖基-(1→3)-(4-O-反式-对香豆酰基)]-α-L-鼠李糖基-(1→6)-β-D-半乳糖苷-7-O-α-L-鼠李糖苷(10),槲皮素-3-O-[β-D-葡萄糖基-(1→3)-(4-O-反式-对香豆酰基)]-α-L-鼠李糖基-(1→6)-β-D-半乳糖苷-7-O-α-L-鼠李糖苷(11),红景天苷(12),2-(3,4-二羟基苯基)乙醇1-O-β-D-葡萄糖苷(13),(7S,8R)-去氢二松柏醇-9'-O-β-D-葡萄糖苷(14),citrusinB(15),异叶乌头碱(16),tanaconitine(17),山栀苷甲酯(18)和淫羊藿次苷B1(19)。除化合物4,13,16和17外,其余化合物均为首次从甘青乌头中分离得到。

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