作者:Amani M.D El Mousallami、Manal S Afifi、Sahar A.M Hussein
DOI:10.1016/s0031-9422(02)00177-2
日期:2002.8
Three acylated flavonol diglucosides, kaempferol 3-O-beta-(6"-O-E-p-coumaroylglucoside)-7-O-beta-glucoside; quercetin 3-O-beta-(6"-O-E-p-coumaroylglucoside)-7-O-beta-glucoside; isorhamnetin 3-O-beta-(6"-O-E-p-coumaroylglucoside)-7-O-beta-glucoside were isolated from the whole plant aqueous alcohol extract of Lotus polyphyllos. The known 3,7-di-O-glucosides of the aglycones kaempferol, quercetin and
三酰化黄酮醇二糖苷,山奈酚 3-O-β-(6"-OEp-香豆酰葡萄糖苷)-7-O-β-葡萄糖苷;槲皮素 3-O-β-(6"-OEp-香豆酰葡萄糖苷)-7-O-β -葡萄糖苷;异鼠李素 3-O-β-(6"-OEp-香豆酰葡萄糖苷)-7-O-β-葡萄糖苷是从莲藕的全植物水醇提取物中分离出来的。已知的苷元的 3,7-di-O-葡萄糖苷还表征了山奈酚、槲皮素和异鼠李素。所有结构均建立在化学和光谱证据的基础上。