1. Seven compounds were isolated and their structures were identified as galls acid, m-digallic acid, p-digalloyl acid, methyl gallate, ethyl gallate, 1, 2, 3, 6-tetra-O-galloyl-β-D-glucose, and 1, 2, 3, 4, 6-penta-O-galloyl-β-D-glucose.
分离得到7个化合物，分别鉴定为：没食子酸、间－二没食子酸、对－二没食子酸、没食子酸甲酯、没食子酸乙酯、1，2，3，6-四－O-没食子酰基－β-D-葡萄糖和1，2，3，4，6-五－O-没食子酰基－β-D-葡萄糖。