摘要
通过利用正相硅胶色谱、大孔吸附树脂柱色谱、葡聚糖凝胶LH-20色谱、制备薄层色谱和半制备HPLC等多种分离方法,运用现代波谱技术对所分离的化合物进行结构鉴定,从乌桕Sapiumsebiferum叶中分离得到15个化合物,分别鉴定为(+)-(7R,7′R,7″S,7′″S,8S,8′S,8″S,8′″S)-4″,4′″-dihydroxy-3,3′,3″,3″,5,5′-hexamethoxy-7,9′;7′,9-diepoxy-4,8″;4′,8′″-bisoxy-8,8′-dineo—lignan-7″,7′″,9″,9′″-tetraol(1),1-(4′-hydroxy-3′-methoxyphenyl)-2-[4″-(3-hydroxypropyl)-2″,6″-dimethoxyphenoxy]propane-1,3-diol(2),苏式-2,3-二-(4-羟基-3-甲氧基苯)-3-甲氧基丙醇(3),threo-5-hydroxy-3,7-dimethoxyphenylpropane-8,9-diol(4),boropinolB(5),threo-8S-7-methoxysyringylglycerol(6),5-羟甲基糠醛(7),5-甲氧甲基-1IH-吡咯-2-甲醛(8),槲皮素(9),山柰酚(10),没食子酸乙酯(11),松柏醛(12),香草醛(13),7-羟基-6-甲氧基香豆素(14),正二十七烷醇(15),除化合物9-11,14外,以上化合物均为首次从乌桕中分离得到。
Chemical constituents of ethyl acetate extract of Sapium sebiferum leaves were isolated and purified by various chromato- graphic methods, including column chromatographies over silica gel, macroporous adsorption resin, and Sephadex LH-20, as well as preparative TLC and semi preparative HPLC. As a results, 15 compounds were separated from Sapium sebiferum leaves and their struc- tures were examined by spectral analysis including NMR and MS data and identified as ( + ) - ( 7R, 7 ′R, 7 ″S, 7′″S, 8 S, 8 ′S, 8″S, 8′″S ) -4 ″, 4′″-dihydroxy-3,3′, 3″, 3′ ″, 5,5′-hexamethoxy-7,9′ ; 7′, 9-diepoxy-4,8″ ;4′, 8′″-bisoxy-8,8 ′-dineo-lignan-7″,7′″,9″,9′″-tetraol ( 1 ) , 1 - ( 4 ′- hydroxy-3 ′-methoxyphenyl) -2- [ 4″- ( 3-hydroxypropyl ) -2″, 6″-dimethoxyphenoxy ] propane-1, 3-diol ( 2 ), Thero-2, 3-bis- ( 4-hydroxy-3- methoxypheyl)-3-methoxy-propanol(3) ,threo-5-hydroxy-3,7-dimethoxyphenyl propane-8,9-diol(4), boropinol B(5),threo-8S-7-me- thoxysyringylglycerol ( 6 ), 5-hydroxymethylfurfural ( 7 ), 5- ( methoxy-methyl ) -1H-pyrrole-2-carbaldehyde ( 8 ), quercetin ( 9 ), kaempferol (10), ethyl gallate(ll), coniferaldehyde(12), vanillin(13), 7-hydroxy-6-methoxy-2H-1-benzopyran-2-one(14),and 1-heptacosanol (15). All compounds except for compounds 9-11,14 were separated from this plant for the first time.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2015年第8期1518-1522,共5页
China Journal of Chinese Materia Medica
基金
云南省中青年学术和技术带头人后备人才培养计划项目(2007PY01-49)
关键词
乌桕
乌桕属
酚类
Sapium sebiferum
Sapium
phenolics