[关键词]
[摘要]
目的 研究藏药熏倒牛Biebersteinia heterostemon地上部分化学成分。方法 采用硅胶、葡聚糖凝胶Sephadex LH-20、半制备高效液相色谱等方法进行分离纯化,根据理化性质和波谱数据鉴定化合物结构。结果 从熏倒牛醋酸乙酯部位中分离得到13个化合物,分别鉴定为伞形花内酯(1)、5,7,3'-三羟基-8,4',5'-三甲氧基黄酮(2)、木犀草素(3)、槲皮素(4)、原儿茶酸甲酯(5)、芹菜素(6)、格链孢酚(7)、木犀草素-7-O-β-D-葡萄糖苷(8)、槲皮素-3-O-β-D-葡萄糖苷(9)、(+)-去氢催吐萝芙木醇(10)、β-谷甾醇(11)、4'-methoxytricetin(12)、3',4',5,8-四羟基黄酮-7-O-β-吡喃葡萄糖苷(13)。结论 化合物3、5~7、10、11~13为首次从该植物中分离得到,其中5、7、10、12、13为首次从该属植物中分离得到。
[Key word]
[Abstract]
Objective To study the chemical components from aerial part of Tibetan herbal medicines Biebersteinia heterostemon. Methods The chemical constituents were isolated and purified by silica gel, Sephadex LH-20 chromatography and preparative liquid chromatography. Their structures were identified by physicochemical properties and spectral analysis. Results Thirteen compounds were isolated from B. heterostemon and their structures were identified as umbelliferone (1), 5,7,3'-trihydroxy-8,4',5'-trimethoxyflavone (2), luteolin (3), quercetin (4), protocatechuic acid methyl ester (5), apigenin (6), alternariol (7), luteolin-7-O-β-D-glucoside (8), quercetin-3-O-β-D-glucoside (9), (+)-dehydrovomifoliol (10), β-sitosterol (11), 4'-methoxytricetin (12), and 3',4',5,8-tetrahydroxyflavanone-7-O-β-glucopyranoside (13). Conclusion Compounds 3, 5-7, 10, 11-13 are isolated from B. heterostemon for the first time. Compounds 5, 7, 10, 12, 13 are isolated from the genus Biebersteinia for the first time.
[中图分类号]
R284.1
[基金项目]
国家自然科学基金资助项目(81760633);青海省自然科学基金项目(2017-ZJ-943Q)