山乌桕茎叶的化学成分研究  

Study on chemical constituents of stems and leaves of Sapium discolor

作　　者：张永丽 潘其明 张贵杰[1] 梁东 ZHANG Yong-li;PAN Qi-ming;ZHANG Gui-jie;LIANG Dong(College of Pharmacy,Guilin Medical University,Guilin 541004,China;State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources,School of Chemistry and Pharmaceutical Sciences,Guangxi Normal University,Guilin 541004,China)

机构地区：[1]桂林医学院药学院,广西桂林541004 [2]广西师范大学化学与药学学院省部共建药用资源化学与药物分子工程国家重点实验室,广西桂林541004

出　　处：《中国中药杂志》2019年第17期3738-3744,共7页China Journal of Chinese Materia Medica

基　　金：国家自然科学基金项目(21562017);广西自然科学基金项目(2018GXNSFAA138051,2017GXNSFFA198004)

摘　　要：研究山乌桕Sapium discolor的化学成分。采用硅胶,Sephadex LH-20,MCI,ODS和半制备型HPLC等色谱技术,从山乌桕茎和叶的乙醇提取物中分离得到17个化合物,分别鉴定为sapiumin F(1),kadsulignan C(2),刺五加酮(3),短叶苏木酚酸乙酯(4),7-羟基-6-甲氧基香豆素(5),秦皮素(6),秦皮定(7),异秦皮定(8),6,7,8-三甲氧基香豆素(9),5,6,7,8-四甲氧基香豆素(10),8-羟基-5,6,7-三甲氧基香豆素(11),3,3’-二甲氧基鞣花酸(12),3,3’,4’-三甲氧基鞣花酸(13),3’-甲氧基鞣花酸-4’-鼠李糖苷(14),4,5-去氢诃子裂酸三乙酯(15),ent-kaurane-3-oxo-16α,17-diol(16),脱落酸(17)。其中化合物1为新化合物,除了化合物4,11和13,其余均为首次从该植物中分离得到。对所有分离的化合物进行了体外抗神经炎症活性测试,结果显示化合物6和15对LPS激活的BV-2小胶质细胞释放NO具有显著抑制作用,其IC50分别为6. 06,6. 05μmol·L^-1。Seventeen compounds were isolated from the 95% ethanol extract of the stems and leaves of Sapium discolor by using various chromatographic techniques,including silica gel,Sephadex LH-20,MCI,ODS,and semi-preparative HPLC. Their structures were elucidated as sapiumin F( 1),kadsulignan C( 2),ciwujiatone( 3),ethylbrevifolin carboxylate( 4),7-hydroxy-8-methoxycoumarin( 5),fraxetin( 6),fraxidin( 7),isofraxidin( 8),6,7,8-trimethoxycoumarin( 9),5,6,7,8-tetramethoxycoumarin( 10),8-hydroxy-5,6,7-trimethoxycoumarin( 11),3,3’-di-O-methylellagic acid( 12),3,3’,4’-tri-O-methylellagic acid( 13),3’-methoxyellagic acid 4’-O-α-rhamnopyranoside( 14),4,5-didehydro-chebulic acid triethyl ester( 15),ent-kaurane-3-oxo-16α,17-diol( 16),and abscisic acid( 17) by spectroscopic data. Compound 1 is a new compound. Except for compounds 4,11,and 13,the remaining compounds were isolated from this plant for the first time. All the isolates were evaluated for their in vitro antineuroinflammatory activities,and the results showed that compounds 6 and 15 significantly inhibited nitric oxide production in lipopolysaccharide-induced BV-2 microglial cells,with IC50 values of 6. 06 and 6. 05 μmol·L^-1,respectively.

关 键 词：山乌桕 化学成分 木脂素 抗神经炎症活性 

分 类 号：R28[医药卫生—中药学]