对叶大戟化学成分的研究

目的：研究对叶大戟Euphorbia sororia的化学成分。方法：采用硅胶、Sephadex LH-20柱分离纯化,通过理化常数和光谱数据鉴定化合物的结构。结果：从对叶大戟乙醇提取物的醋酸乙酯部位中分离得到10个化合物,经理化常数和波谱数据分析,分别鉴定为山柰酚(kaempferol ,1),莨菪亭(scopoletin,2),山柰酚3-O-吡喃葡萄糖苷(kaempferol 3-O-glucopyranoside,3),槲皮素(quercetin,4),香草酸(vanillic acid,5),反式对羟基肉桂酸(E-p-hydroxy-cinnamic acid,6),原儿茶酸(protocatechuic acid,7),6,7-二羟基香豆素(6,7-dihydroxycoumarin,8),β-谷甾醇(β- sitosterol,9),胡萝卜苷(daucosterol,10)。结论：化合物1～10均为首次从该植物中分离得到。

Studies on chemical constituents of Euphorbia sororia

OBJECTIVE: To study the chemical constituents of the aerial parts of Euphorbia sororia. METHOD: Isolation and purification were carried out by silica gel and Sephadex LH -20 column chromatographies. Compounds were identified by physicochemical properties and spectral analysis. RESULT: Ten compounds were isolated from the plant . Their structures were identified as kaempferol (1), scopoletin (2) , kaempferol 3-O-glucopyranoside (3) , quercetin (4) , vanillic acid (5) , E-p-hydroxycinnamic acid (6) , protocatechuic acid (7), 6, 7-dihydroxycoumarin (8), beta-sitosterol (9), and daucosterol (10) , respectively. CONCLUSION: All the above compounds were isolated from the plant for the first time.