荆条蜂胶化学成分分析

该文对荆条蜂胶乙醇提取物的化学成分进行了考察,蜂胶原胶经体积分数65%的乙醇于80℃加热得到蜂胶提取物,将提取物采用石油醚、乙酸乙酯、正丁醇进行逐级溶剂分配、硅胶色谱柱层析、重结晶、制备液相进行分离和纯化,从乙酸乙酯部分分离得到31个化合物,通过对化学物理性质分析以及红外、紫外、质谱、核磁共振波谱的测定解析,确定了化合物结构。其中,黄酮类化合物14个,肉桂酸衍生物7个,咖啡酸酯类化合物6个,其他类4个。

Analysis of Chemical Constituents of Vitex negundo Propolis

This paper carried out an investigation for the first time into the chemical composition and the quantitative analytical methods of Jingtiao propolis collected in Liaoning province.The propolis sample was extracted with 65% ethanol at 80 ℃,and then the extract was subjected to concentration under reduced pressure,solvent partition,silica gel column chromatography,recrystallization and high preparative performance liquid chromatography.Thirty one compounds were obtained and their structures were ascertained on the basis of the data of IR,UV,MS,1HNMR,13CNMR and physical properties.Fourteen of them are flavanoids,seven are caffeic acid analogues,six are caffeic esters,and four are of other categories.