龙眼壳中化学成分的研究(Ⅰ)

Studyon the chemical constituents of Dimocarpus longan pericarp(1)

通过多种柱色谱对龙眼壳中多酚类成分进行分离纯化及结构鉴定。结果表明:从中得到6个多酚类化合物,根据波谱数据分析及文献对比,分别鉴定为原儿茶酸(1)、没食子酸(2)、1,2,3,4,6-O-五没食子酰葡萄糖(3)、柯里拉京(4)、乙酰甲基-老鹳草素(5)、(-)-表儿茶素(6)。所有化合物均为首次从该植物中分离得到。

The chemical constituents of Dimocarpus longan pericarp were isolated and purified by Sephadex LH-20, MCI gel CHP 20P, and Toyopearl Butly-650C column chromatography and yield six polyphenol compounds. Their structures were elucidated by NMR and literature as ： 3,4-dihydroxybenzoic acid（l）, gallic acid（2）, 1,2,3,4,6-penta- O galloyl-β-Dglucose（3）, corilagin（4）, aeetonylgeraniin（5）, （-）-epicatechin（6）. All compounds were isolated from the D. Longan Pericarp for the first time.