银合欢叶黄酮类成分的研究  

Study on the flavonoids in leucaena leaves

作　　者：王恩举[1] 梁德华[2] 杨智蕴[3] 

机构地区：[1]海南师范大学化学系,海南海口571158 [2]海南师范大学资源环境与旅游系,海南海口571158 [3]东北师范大学化学学院,吉林长春130024

出　　处：《海南师范大学学报（自然科学版）》2008年第2期171-172,183,共3页Journal of Hainan Normal University（Natural Science）

摘　　要：银合欢叶的乙醇提取物除去叶绿素后,分别用乙醚、乙酸乙酯、水饱和的正丁醇充分萃取,乙酸乙酯部分经反复硅胶柱色谱分离纯化,得三个化合物,分别为:槲皮素-3-O-α-L-鼠李糖甙(Ⅰ)、槲皮素-3-O--αL-阿拉伯糖甙(Ⅱ)、杨梅素-3-O-α-L-鼠李糖甙(Ⅲ),均为首次从该植物中分离得到.正丁醇部分酸水解后,经色谱、紫外光谱分析,并通过与标准品对照,发现甙元成分单一,主要为槲皮素.The flavonoid constituents of the 70% EtOH extract of Leucaena leaves were studied. The chemical constituents were isolated by silics gel column chromatography and identified by means of spectral data and literature. The compounds obtained were identified as quercetin-3-O-arabinoside （ Ⅰ ）, quercetin-3-O-rhamnoside （Ⅱ）, myricetin-3-O- rhamnoside （Ⅲ）. All of the compound are obtained from Leucaena leaves for the first time. Most Of the aglycones of the flavonoid glycoside was quercetin and the Leucaena leaves is becoming a new promising natural source of quercetin.

关 键 词：银合欢 黄酮甙 槲皮素 化学成分 

分 类 号：R914.4[医药卫生—药物化学]