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桂野桐中香豆素类化学成分的研究
Coumarins from Mallotus conspurcatus
【摘要】 目的研究桂野桐中的香豆素类化学成分。方法利用硅胶、葡聚糖凝胶、MCI填料(Middle chromatogram isolated Gel)、半制备HPLC等色谱分离手段对桂野桐体积分数75%乙醇粗提物的乙酸乙酯萃取物进行分离,运用1H-NMR、13C-NMR、ESI-MS等现代谱学方法以及与文献数据对比,鉴定化合物的结构。结果分离得到12个香豆素,它们分别是malloapelin A(1)、5’-去甲氧基沉香木质素(2)、沉香木质素(3)、cleomiscosin B(4)、6-羟基-7-甲氧基-香豆素(5)、braylin(6)、aegelinol(7)、佛手内酯(8)、7-羟基-6,8-二甲氧基香豆素(9)、8-羟基-6,7-二甲氧基香豆素(10)、银桦内酯(11)和秦皮素(12)。结论化合物612为首次从该属植物中分离得到。
【Abstract】 OBJECTIVE To study the coumarins from Mallotus conspurcatus.METHODS The ethyl acetate part of 75%ethanol extracts from Mallotus conspurcatus was isolated.The compounds were isolated and purified with column chromatography,and their structures were elucidated on the basis of1H-NMR,13C-NMR and ESI-MS data.RESULTS Twelve coumarins were determined to be malloapelin A(1),5’-demethyl aquillochin(2),aquillochin(3),cleomiscosin B(4),6-hydroxy-7-methoxy-coumarin(5),braylin(6),aegelinol(7),bergapten(8),isofraxidin(9),fraxidin(10),grevillone(11),and fraxetin(12).CONCLUSION Compounds 6-12 are isolated from this genus for the first time.
【Key words】 Mallotus Lour; Mallotus conspurcatus; coumarin; malloapelin A; braylin;
- 【文献出处】 中国药学杂志 ,Chinese Pharmaceutical Journal , 编辑部邮箱 ,2017年21期
- 【分类号】R284.1
- 【被引频次】6
- 【下载频次】226