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甘青乌头正丁醇部位苷类化学成分研究

Studies on glycosides from the n-butanol fraction of Aconitum tanguticum

  • 摘要: 对藏药甘青乌头Aconitum tanguticum (Maxim.) Stapf的苷类化学成分进行研究。采用硅胶、ODS、Sephadex LH-20柱色谱、半制备高效液相色谱等色谱技术,从甘青乌头乙醇提取物的正丁醇萃取部位中分离得到8个糖苷类化合物,根据它们的理化性质与波谱数据分别鉴定为N-4-O-(β-D-吡喃葡萄糖基)-苯乙基苯甲酰胺(1)、N-(2'-β-D-吡喃葡萄糖基-5'-甲氧基水杨基)-4-羟基-3-甲氧基邻氨基苯甲酸甲酯(2)、N-(2'-β-D-吡喃葡萄糖基-5'-羟基水杨基)-4-羟基-3-甲氧基邻氨基苯甲酸甲酯(3)、红景天苷(4)、苄醇-β-樱草糖苷(5)、苯乙醇-β-D-木糖-(1''→6')-β-D-吡喃葡萄糖苷(6)、4-羟基苯乙氧基-8-O-β-D-6-O-(4-O-β-D-吡喃葡萄糖基)-阿魏酰基-吡喃葡萄糖苷(7)、苯乙醇-α-L-阿拉伯糖-(1''→6')-葡萄糖苷(8)。其中,化合物12为新化合物,化合物568为首次从甘青乌头中分离得到。

     

    Abstract: In order to investigate the chemical constituents of glycosides in Aconitum tanguticum (Maxim.) Stapf, column chromatographic techniques such as silica gel, ODS, Sephadex LH-20, and semi-preparative high performance liquid chromatography were used to afford eight glycosides from the n-butanol fraction of the 85% ethanol extract of Aconitum tanguticum. Based on the physicochemical properties and spectral data, these compounds were identified as N-4-O-(β-D-glucopyranosyl)-phenethylbenzamide (1), N-(2'-β-D-glucopyranosyl-5'-methoxysalicyl)-4-hydroxy-3-methoxyanthranilic acid methyl ester (2), N-(2'-β-D-glucopyranosyl-5'-hydroxysalicyl)-4-hydroxy-3-methoxyanthranilic acid methyl ester (3), salidroside (4), benzyl primeveroside (5), phenethanol-β-D-xylose-(1''→6')-β-D-glucopyranoside (6), 4-dihydroxyphenethoxy-8-O-β-D-6-O-(4-O-β-D-glucopyranosyl)-feruloyl-glucopyranoside (7), phenethanol-α-L-arabinopyranosyl-(1''→6')-β-D-glucopyranoside (8). Among them, compounds 1 and 2 were new compounds, and compounds 5,6,8 were isolated from Aconitum tanguticum for the first time.

     

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