毛建草化学成分的研究

目的：对六盘山地区毛茛科植物毛建草Ranunculus japonicus的化学成分进行分离和鉴定。方法：采用超声波乙醇浸提法提取后分别以石油醚、醋酸乙酯、正丁醇萃取，石油醚和醋酸乙酯部位用硅胶柱色谱及Sephadex LH-20进行分离纯化,通过理化性质和波谱技术鉴定结构。结果：从毛建草中分离鉴定了10个化合物,分别鉴定为滨蒿内酯(scoparone,1)、小麦黄素(tricin,2)、原儿茶酸(protocatechuic acid,3)、木犀草素(luteolin,4)、白头翁素(anemonin,5)、东莨菪内酯(scopoletin,6)、5-羟基-6,7-二甲氧基黄酮(5-hydroxy-6,7-dimethoxyflavone,7)、小毛茛内酯(ternatolide,8)、5- 羟基 -7,8 -二甲氧基黄酮(5-hydroxy-7,8-dimethoxyflavone,9)。结论：化合物1～9均为首次从该植物中分离得到。

Studies on chemical constituents of Ranunculus japonicus

Objective: To isolate and determine the chemical constituents of Ranunculus japonicus in Liupan Mountain, Ningxia province, China. Method: The herb was extracted with ethanol by ultrasonic bath. The extractives were divided to petroleum ether, ethyl acetate, n-butanol parts. The first two parts were separated and purified with silica gel and Sephadex LH-20 column chromatography. The structures of the separated compounds were idnetefied by physical and chemical properties and spectral analysis. Result: Nine compounds were isolated and identified as follows: scoparone (1), tricin (2), protocatechuic acid (3), luteolin (4), anemonin (5), scopoletin (6), 5-hydroxy-6, 7-dimethoxyflavone (7), ternatolide (8), 5-hydroxy-7, 8-dimethoxy-flavone (9). Conclusion: Compounds 1-9 were isolated from Ranunculus japonicus for the first time.