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作 者:杨新洲[1] 吕静南 徐婵[1] 林亲雄[1] 杨静[1] 汪超[1] 宋萍[2]
机构地区:[1]中南民族大学药学院,湖北武汉430074 [2]青海民族大学科技处,青海西宁810007
出 处:《云南大学学报(自然科学版)》2015年第1期134-139,共6页Journal of Yunnan University(Natural Sciences Edition)
基 金:青海省自然科学基金(2012-Z-904);国家自然科学基金(81102798);武汉市青年晨光计划(2013070104010028);国家科技支撑计划(2012BAI27B06)
摘 要:运用中压柱色谱和高效制备液相色谱方法对藏药鬼箭锦鸡儿的化学成分进行分离纯化,利用现代波谱技术鉴定所分离化合物的结构,并对所得到的化合物进行体外抗肝癌活性测试.从鬼箭锦鸡儿乙醇提取物中分离得到8个单体化合物,分别鉴定为6,7,3'-三羟基-4'-甲氧基异黄酮(1)、3,7-二羟基-4'-甲氧基黄酮(2)、3-甲氧基-4,9-二羟基紫檀素(3)、7,3'-二羟基-5'-甲氧基异黄酮(4)、6,7-二羟基-4'-甲氧基异黄酮(5)、3,9-二甲氧基-8-羟基紫檀素(6)、3,9-二甲氧基-4-羟基紫檀素(7)和3-甲氧基-4-羟基高丽槐素(8),所有的化合物均为首次从该植物中分离得到.采用MTT法对化合物1~8进行体外抗肝癌活性测试,结果显示所有的化合物对2个肝癌细胞株Hep G2和Hep3B均有抑制作用,它们的IC50值范围为22.5~104.7μg/mL.To discover new cytotoxic constituents from the traditional tibetan medicine-“Zuomaoxing” (roots of Caragana jubata (pall) Poir. ), the isolation and purification of a methanolic extract was performed with medi- um-pressure column chromatography and preparative HPLC. Eight pure compounds were obtained and their structures were elucidated as 6,7,3' - trihydroxy- 4' - methoxyisoflavone ( 1 ), 3,7 - dihydroxy - 4' - methoxyfla- vonone ( 2 ), 3 -methoxy-4,9-dihydroxy pterocarpan ( 3 ), 7,3' -dihydroxy- 5' -methoxyisoflavone ( 4 ), 6,7 -di- hydroxy-4'-methoxyisoflavone ( 5 ), 3,9 -dimethoxy- 8 -hydroxy pterocarpan ( 6 ), 3,9 -dimethoxy- 4- hydroxy pterocarpan (7) and 3-methoxy-4-hydroxy maackiain (8) based on detailed spectral analysis.All compounds were isolated from the title plant for the first time.In vitro cytotoxic activity of compounds 1--8 were evaluated u- sing MTT method, and the results showed that all compounds exhibited cytotoxic activity against HepG2 and Hep3B cell lines with IC50 values ranging from 22.5 to 104.7 μg/mL.
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