药囊花茎叶的化学成分研究

CHEMICAL CONSTITUENTS FROM THE AERIAL PARTS OF CYPHOTHECA MONTANA

药囊花 (CyphothecamontanaDiels)茎叶的乙醇提取物具有抗菌活性 ,进一步的活性追踪表明活性成分在乙酸乙酯和正丁醇萃取物中。我们从这两种萃取物中共分离鉴定出 9个化合物 ,其结构通过波谱分析等分别鉴定为 :槲皮素 3 O α L 鼠李糖甙 (1)、杨梅素 3 O α L 鼠李糖甙 (2 )、山萘酚 3 (2″ ,6″ 二 O (E) p 羟基苯丙烯酰 β D 吡喃葡萄糖甙 (3)、3,3′ O 二甲基逆没食子酸 4 O β D 吡喃葡萄糖甙(4)、槲皮素 (5 )、2α ,3β ,19α ,2 3 四羟基乌苏 12 烯 2 8 酸 2 8 O β D 吡喃葡萄糖甙 (6 )、乌苏酸 (7)、β 谷甾醇 (8)和胡萝卜甙 (9)。这些化合物均为首次从我国该特有单种属植物中分离得到。

The ethyl acetate and n butanol extracts obtained from the alcohol syrup of the aerial parts of Cyphotheca Montana Diels,an endemic plant,showed antibacteria activity.From the extracts,nine compounds were isolated by silica gel column chromatography.On the basis of spectral evidence,they were identified as quercetion 3 O α L rhamnopyranoside(1),myricetin 3 O α L rhamnopyranoside(2),kaempferol 3 O (2″,6″ O di (E) p coumaroyl β D glucopyranoside(3),ellagic acid 3,3′ dimethyl ether 4 O β D glucopyranoside(4),niga ichigoside F 1(5),quercetin(6),ursolic acid(7),β sitosterol(8) and daucosterol(9),respectively.