Oldhamioside, A New Phenolic Glucoside from Daphniphyllum oldhamii

Further phytochemical investigation of the ethyl acetate extract of the stem of Daphniphyllum oldhamii afforded a new phenolic glucoside, named oldhamioside 1, together with eleven known compounds, koaburaside 2, betulin, 28-hydroxyl-3-lupenone, pineresinol, syringaresinol, 4-O-methyl- cedrusin, narigenin, eriodictyol, apigenin, loureirin C, and asperuloside. The structures of new and known compounds were characterized by detailed spectroscopic analysis and comparison of their spectral data with reported values.

显苞芒毛苣苔乙酸乙酯部位的化学成分研究

目的:研究显苞芒毛苣苔地上部分乙酸乙酯部位的化学成分。方法:利用硅胶色谱柱层析进行分离纯化,通过波谱数据结合理化性质鉴定结构。结果:从显苞芒毛苣苔的乙酸乙酯部位中分离鉴定了8个化合物,分别为:koaburaside(1)、松柏醛(2)、丁香醛(3)、反-3,5-二甲氧基-4-羟基肉桂醛(4)、2,4'-二羟基苯乙酮(5)、对羟基苯乙酮(6)、β-胡萝卜苷(7)、β-谷甾醇(8)。结论:其中,化合物1、2为首次从该属植物中分离得到。