甘蔗茎叶化学成分的研究

Chemical constituents from the stems and leaves of Saccharum officinarum

目的研究甘蔗Saccharum officinarum L.茎叶的化学成分。方法甘蔗茎叶甲醇提取物乙酸乙酯部位采用硅胶柱、Sephadex LH⁃20等进行分离纯化,根据理化性质及波谱数据鉴定所得化合物的结构。结果从中分离得到14个化合物,分别鉴定为乌头酸C(1)、苯二酚(2)、香豆酸(3)、5,7,4′⁃三羟⁃3′,5′⁃二甲氧基黄酮(4)、bridelionol B(5)、4⁃O⁃α⁃L⁃鼠李糖基苯甲酸(6)、miliusin B(7)、5⁃O⁃二甲氧基肉桂酰基奎尼酸(8)、cimiracemate C(9)、conoidol A(10)、麦黄酮7⁃O⁃β⁃D⁃吡喃葡萄糖苷(11)、salcolin B(12)、tricin 4′⁃O⁃[threo⁃β⁃guaiacyl⁃(7″⁃O⁃methyl)⁃glyceryl]ether(13)、tricin 4′⁃O⁃(erythro⁃β⁃guaiacylglyceryl)ether 7⁃O⁃β⁃glucopyranoside(14)。结论化合物5~14为首次从该植物中分离得到。

AIM To study the chemical constituents from the stems and leaves of Saccharum officinarum L..METHODS The ethyl acetate fraction of methanol extract from the stems and leaves of S.officinarum was isolated and purified by silica column and Sephadex LH⁃20,then the structures of obtained compounds were identified by physicochemical properties and spectral data.RESULTS Fourteen compounds were isolated and identified as aconitate C(1),O⁃diphenol(2),coumaric acid(3),5,7,4′⁃trihydroxy⁃3′,5′⁃dimethoxyflavone(4),bridelionol B(5),4⁃(α⁃L⁃rhamnopyranosyloxy)benzoic acid(6),miliusin B(7),5⁃O⁃dimethoxycinnamoylquinic acid(8),cimiracemate C(9),conoidol A(10),tricin7⁃O⁃β⁃D⁃glucopyranoside(11),salcolin B(12),tricin4′⁃O⁃[threo⁃β⁃guaiacyl⁃(7″⁃O⁃methyl)⁃glyceryl]ether(13),tricin 4′⁃O⁃(erythro⁃β⁃guaiacylglyceryl)ether 7⁃O⁃β⁃glucopyranoside(14).CONCLUSION Compounds 5-14 are isolated from this plant for the first time.