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作 者:黄筑艳[1,2] 敖芳芳[1] 吴希芝 杨万霞[1] 黄滔[1] 张建新[1] 张援虎[1]
机构地区:[1]贵州省中国科学院天然产物化学重点实验室,贵阳550002 [2]贵州大学药学院,贵阳550025
出 处:《中国药学杂志》2016年第21期1826-1830,共5页Chinese Pharmaceutical Journal
基 金:科技部973计划前期研究专项资助项目(2012CB722601);国家重大科学仪器设备开发专项资助项目(2011YQ12003506)
摘 要:目的分离牛角瓜(CalotropisgiganteaL.)中的化学成分并评价其体外抗肿瘤活性,为确定牛角瓜中的抗肿瘤有效成分提供基础。方法牛角瓜全株用体积分数95%乙醇溶液加热回流提取,减压回收乙醇,浓缩液加水稀释后经石油醚、三氯甲烷萃取,三氯甲烷萃取物利用正相硅胶、反相Rp-18、微孔吸附树脂CHP20P、SephadexLH-20等柱色谱方法分离纯化,通过理化性质和光谱数据进行结构鉴定。结果从牛角瓜中分离鉴定了13个化合物,分别为:钉头果苷(1),乌沙苷元(2),阿江榄仁酸(3),3-(1-hydroxyethyl)-7-hydroxy-1-isobenzofuranone(4),胡萝卜苷(5),丁香脂素(6),12—0-benzoyl—deacylmetexige—nin(7),3-羟基4-甲氧基苯甲酸(8),齐墩果酸(9),β-谷甾醇(10),1-萘乙酸甲酯(11),对羟基苯甲酸丁酯(12),a—D—olean—dropyranoside(13)。其中化合物2—4、6~9、11~13为首次从该植物中分离得到。体外活性检测显示,只有化合物1、2对肿瘤HLE、K562、RPM18226、MCF7、MDA、WM9细胞的增殖具有明显的抑制活性,对肿瘤K562、RPM18226细胞株的增殖抑制活性尤为显著。结论初步确定牛角瓜中的抗肿瘤有效成分为强心苷类化合物钉头果苷及乌沙苷元。OBJECTIVE To study the anti-cancer components of Calotropis gigantean L. METHODS The powdered whole plants of C. gigantea were extracted with 95% alcohol. After removal of the solvent, the residue was extracted with petroleum ether and chloroform, and the compounds in the chloroform extract were isolated and purified by different column chromatograghies carried out on silica gel, RP-18, MCI, and Sephadex LH -20 and their structures were elucidated by spectral data. RESULTS Thirteen compounds were isolated and their structures were characterized as gofruside (1) , uzarigenin(2 ) , arjunolic acid (3), 3 -( 1 -hydroxy- ethyl) -7-hydroxy-1 -isobenzofuranone ( 4 ), daucosterol ( 5 ), syringaresinol ( 6 ), 12-O-benzoyl-deacylmetaplexigenin ( 7 ), 3-hydroxy-4- methoxybenzoic acid( 8 ), oleanolic acid(9) ,β-sitosterol (10), methyl 1-naphthaleneacetate (11 ), butylparaben (12), a-D-oleandropy- ranoside(13) , and compounds 2 -4,6 -9, and 11 - 13 were isolated from this plant for the first time. Compounds 1 and 2 showed cy- totoxieity against HLE, K562, RPMI8226, MCF7, MDA, and WM9 cell lines, with K562 and RPMI8226 being the most sensitive cells. CONCLUSION Compounds 1 and 2 are premilinarily judged as the anti-cancer components in C. gigantean.
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