作者:H. Dhasmana、H.S. Garg
DOI:10.1016/s0031-9422(00)98097-x
日期:1989.1
Abstract Two new xanthone- O -glucosides, 2,3,7-trimethoxyxanthone-1- O -glucoside and 2,3,5-trimethoxyxanthone-1- O -glucoside were isolated from whole plant of Halenia elliptica and identified through their acetates. Also present are four free xanthones, 1-hydroxy-2,3,4,7-tetramethoxy, 1-hydroxy-2,3,4,5-tetramethoxy, 1-hydroxy-2,3,7-trimethoxy, and 1-hydroxy-2,3,5-trimethoxyxanthone, oleanolic acid
摘要 从椭圆海莲草全株中分离得到2,3,7-三甲氧基氧杂蒽酮-1-O-葡萄糖苷和2,3,5-三甲氧基氧杂蒽酮-1-O-葡萄糖苷两种新的氧杂苷,并对其进行乙酸酯鉴定。还存在四种游离氧杂蒽酮、1-羟基-2,3,4,7-四甲氧基、1-羟基-2,3,4,5-四甲氧基、1-羟基-2,3,7-三甲氧基和1-羟基-2,3,5-三甲氧基氧杂蒽酮、齐墩果酸和谷甾醇葡萄糖苷。富含氧杂蒽酮糖苷的部分显示出显着的抗阿米巴活性。