闭鞘姜属两种植物的化学成分研究

Studies on Chemical Constituents of Two Plants from Costus

目的 :研究闭鞘姜和光叶闭鞘姜的化学成分。方法 :溶剂提取 ,硅胶柱色谱分离 ,理化性质和光谱数据鉴定结构。结果 :从闭鞘姜中分离鉴定了 6个化合物 ,为薯蓣皂苷元 (1) ,薯蓣次苷B(2 ) ,薯蓣皂苷元酮 (3) ,环阿尔廷醇 (4) ,2 5 烯 环阿尔廷醇 (5 ) ,二十八烷酸 (6 ) ;从光叶闭鞘姜中分离鉴定了 4个化合物 ,为二十四烷酸 (7) ,琥珀酸(8) ,β 谷甾醇 (9) ,胡萝卜苷 (10 )。 结论 :化合物 3～ 6为首次从闭鞘姜中分得 ;化合物 7～ 10为首次从光叶闭鞘姜中分得。

Objective:To study the chemical constituents of Costus speciosus and C. tonkinensis (Zingiberaceae) distributed in Yunnan province.Method:Chromatography and spectral analyses were used to isolate the constituents and elucidate their structure.Result:Six compounds were isolated from the rhizome of C. speciosus and elucidated as diosgenin(1), prosapogenin B of dioscin(2), diosgenone(3), cycloartanol(4), 25 en cycloartenol(5) and octacosanoic acid(6). Four compounds were isolated from the rhizome of Costus tonkinensis and elucidated as tetracosanoic acid(7), succinic acid(8), β sitosterol(9) and daucosterin(10).Conclusion:Compounds of 3～6 were obtained from C. speciosus for the first time and compounds of 7～10 were obtained from C. tonkinensis for the first time too.