龙眼花的化学成分研究

Chemical Constituents of Dimocarpus Longan Flower

目的研究龙眼花的化学成分。方法采用多种色谱学手段分离纯化龙眼花中的化学成分,并使用质谱、核磁共振波谱技术对其进行鉴定。结果得到8个化合物,分别为槲皮素-3-O-葡萄糖苷(Ⅰ)、山奈酚-3-O-芸香糖(Ⅱ)、番石榴苷(Ⅲ)、没食子酸甲酯(Ⅳ)、没食子酸(Ⅴ)、山奈酚(Ⅵ)、槲皮素(Ⅶ)、金丝桃苷(Ⅷ)。结论化合物Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴ为首次从龙眼花中分离得到。

OBJECTIVE To study the chemical constituents form Dimocarpus longan Flower. METHODS Chemical constituents were isolated by chromatographic methods and identified by NMR analysis. RESULTS Eight compounds are：Quercetin-3-O-β-D-glucoside （Ⅰ）,Kaempferol 3-rutinoside （Ⅱ）,Guaijaverin （Ⅲ）,Methyl 3,4,5-trihydroxybenzoate （Ⅳ）,Gallic acid（Ⅴ）,kaempferol （Ⅵ）,Quercitrin （Ⅶ）,Hyperoside （Ⅷ）. CONCLUSIONCompound Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴ were isolated from Longan flowe for the first time.