孑遗植物桫椤叶化学成分的研究

Chemical Constituents in the Leaves of Alsophila spinulosa

采用甲醇浸泡提取,依次用石油醚、乙酸乙酯和正丁醇萃取,通过反复硅胶柱色谱分离的方法研究桫椤叶的化学成分,得到7个化合物,根据光谱数据和理化性质鉴定分别为牡荆素(vitexin)(1)、异荭草素(isorientin)(2)、芹菜素(apigenin)(3)、木犀草素(luteolin)(4)、diploterol(5)、胡萝卜苷(daucosterol)(6)、β-谷甾醇(β-sitosterol)(7).7个化合物均为首次在桫椤中分离获得.

Seven compounds have been isolated by means of silica gel column chromatography from the leaves of Alsophila spinulosa （Hook.） Tryo. Their structures were elucidated as vitexin （1）,isorientin （2）, apigenin （3） ,luteolin （4） ,diploterol （5） ,daucosterol （6） and β-sitosterol （7）. All the compounds are isolated from Alsophila spinulosa for the first time.