【摘要】 为明确苦绳Dregea sinensis Hemsl中的主要化学成分,采用AB-8大孔吸附树脂、硅胶、Sephadex LH-20葡聚糖凝胶和反相制备液相等色谱方法从苦绳中首次分离得到5个木脂素类化合物.通过一维和二维核磁共振波谱、有机质谱等方法确定它们分别为4′,4″-二羟基-3,3′,3″,5,5′,5″-六甲氧基-7,9′:7′,9-二环氧-4,8″-氧-8,8′-倍半新木脂素-7″,9″-二醇(1),4′,4″-二羟基-3,3′,3″,5,5′-五甲氧基-7,9′:7′,9-二环氧-4,8″-氧-8,8′-倍半新木脂素-7″,9″-二醇(2),(+)-异落叶松树脂醇(3),赤式-愈创木酚基甘油基-β-O-4′-松柏醇(4),diasyringaresinol(5).更多还原

【Abstract】 In order to study the chemical constituents of Dregea sinensis Hemsl,five lignans were isolated from the roots of Dregea sinensis Hemsl by AB-8 macroporous resin column,silica gel column,Sephadex LH-20 column and semi-preparative HPLC.On the basis of 1Dand 2D NMR data and MS analyses,their structures were identified as 4′,4″-dihydroxy-3,3′,3″,5,5′,5″-hexamethoxy-7,9′:7′,9-diepoxy-4,8″-oxy-8,8′-sesquineolignan-7″,9″-diol(1),4′,4″-dihydroxy-3,3′,3″,5,5′-pentamethoxy-7,9′:7′,9-diepoxy-4,8″-oxy-8,8′-sesquineo-lignan-7″,9″-diol(2),(+)-isolariciresinol(3),erythro-guaiacylycerol-β-O-4′-coniferyl alcohol(4),diasyringaresinol(5).These compounds were isolated from this plant for the first time.更多还原