【摘要】 从茜草科植物白花蛇舌草中分离出5个黄酮化合物,经光谱数据分析鉴定它们的结构分别为山柰酚(Ⅰ),山柰酚-3- O- β-D- 吡喃葡萄糖苷(Ⅱ),山柰酚-3- O- ( 6”- O- α- L- 鼠李糖基)- β-D 吡喃葡萄糖苷(Ⅲ),槲皮素-3 -O -β- D 吡喃葡萄糖苷(Ⅳ)和槲皮素-3 -O- (2”O 葡萄糖基) -β-D 吡喃葡萄糖苷(Ⅴ)。其中Ⅰ~Ⅲ和Ⅴ系首次自该植物中分得。更多还原

【Abstract】 Five flavonoids were isolated from Hedyotis diffusa Willd.Their structures were elucidated as kaempferol (Ⅰ),kaempferol 3-O-β-D-glucopyranoside(Ⅱ),kaempferol 3-O-(6"-O-α-L-rhamnosyl)-β-D-glucopyranoside(Ⅲ),quercetin 3-O-β-D-glucopyranoside(Ⅳ) and quercetin 3-O-(2"-O-β-D-glucopyranosyl)-β-D-glucopyranoside(Ⅴ)by spectroscopic analysis.Compounds Ⅰ～Ⅲ and Ⅴ were originally isolated from H.diffusa.更多还原