构树的化学成分研究

Chemical constituents from branch of Broussonetia papyrifera

目的：对构树枝条的化学成分进行分离和鉴定。方法：使用硅胶、Sephadex LH-20反复柱色谱分离、纯化，利用ESI-MS和NMB技术确定结构。结果：分离鉴定了6个化合物，分别为（2S）-7，3＇-dihydmxy-4＇-methoxyflavan（1），过氧化麦角甾醇（ergosterol peroxide，2），D-半乳糖醇（D-galacitol，3），sulfurefin（4），黑立脂素苷（liriodendrin，5），graveolone（6）。结论：化合物1～6均为首次从构树中分离得到。

Objective： To investigate the chemical constituents from the branch of Broussonetia papyrifera. Method： Column chromatographic methods were used to isolate the chemical constituents. ESI-MS and NMR methods were employed for their structural elucidation. Result： Six compounds were isolated and identified as （2S）-7, 3＇-dihydroxy-4＇-methoxyflavan （1）, ergosterol peroxide （2）, D-galacitol （3）, sulfuretin （4）, liriedendrin （5）, graveolone （6）, respectively. Conclusion： Compounds 1-6 were isolated from the plant for the first time.