万仲贤 吴建国 吴飞



摘要 目的:研究白花鬼针草醇提物的化学成分。方法:以硅胶色谱、Sephadex LH-20色谱及C18反相硅色谱分离纯化白花鬼针草醇提物的化学成分,以1H-NMR、13C-NMR以及质谱鉴定化学结构。结果:从白花鬼针草醇提物中分离、纯化、鉴定了6个化合物,分别為:槲皮素-3,3′-二甲醚-7-O-β-D-吡喃酮葡萄糖苷(1)、奥卡宁4′-O-β-D-(2″,4″,6″-三乙酰基)-吡喃酮葡萄糖苷(2)、4-O-(6″-O-对-香豆酰基-β-D-吡喃酮葡萄糖)-对-香豆酸(3)、4-O-(2″-O-乙酰基-6″-O-对-香豆酰基-β-D-吡喃酮葡萄糖)-对-香豆酸(4)、邻苯二甲酸异丙酯(5)、原儿茶酸(6)。结论:6个化合物均首次从白花鬼针草中分离得到,其中,槲皮素-3,3′-二甲醚-7-O-β-D-吡喃酮葡萄糖苷(1)、4-O-(6″-O-对-香豆酰基-β-D-吡喃酮葡萄糖)-对-香豆酸(3)、4-O-(2″-O-乙酰基-6″-O-对-香豆酰基-β-D-吡喃酮葡萄糖)-对-香豆酸(4)、邻苯二甲酸异丙酯(5)4个化合物属于首次从鬼针草数药用植物植物中分离鉴定。
关键词 白花鬼针草;化学成分;槲皮素-3,3′-二甲醚-7-O-β-D-吡喃酮葡萄糖苷;奥卡宁4′-O-β-D-(2″,4″,6″-三乙酰基)-吡喃酮葡萄糖苷;4-O-(6″-O-对-香豆酰基-β-D-吡喃酮葡萄糖)-对-香豆酸;4-O-(2″-O-乙酰基-6″-O-对-香豆酰基-β-D-吡喃酮葡萄糖)-对-香豆酸;邻苯二甲酸异丙酯;原儿茶酸
Abstract Objective:To study the chemical constituents of the ethanol extraction from Bidens Pilosa.Methods:The chemical constituents of the ethanol extraction from Bidens Pilosa were separated and purified by silica gel chromatography,Sephadex LH-20 chromatography and C18 reverse phase silicon chromatography,and the chemical structure was identified by 1H-NMR,13C-NMR and mass spectrometry.Results:A total of 6 compounds were isolated,purified and identified from the ethanol extraction of Bidens Pilosa:quercetin-3,3′-dimethyl ether-7-O-β-D-rhamnopyranoside(1),okanine-4′-O-β-D-(2″,4″,6″-triacetyl)-glucopyranoside(2),4-O-(6″-O-p-coumaroyl-β-D-pyranone glucose)-p-coumaric acid(3),4-O-(2″-O-acetyl-6″-O-p-coumaroyl-β-D-pyranone glucose)-p-coumaric acid(4),isopropyl phthalate(5),protocatechuic acid(6).Conclusion:The above 6 compounds were first isolated from Bidens Pilosa.Among them,4 compounds—quercetin-3,3′-dimethyl ether-7-O-β-D-rhamnopyranoside(1),4-O-(6″-O-p-coumaroyl-β-D-pyranone glucose)-p-coumaric acid(3),4-O-(2″-O-acetyl-6″-O-p-coumaroyl-β-D-pyranone glucose)-p-coumaric acid(4),isopropyl phthalate(5)the above 4 compound were the first to be isolated and identified from the medicinal plants of Bidens L.
Keywords Bidens Pilosa; Chemical constituents; Quercetin-3,3′-dimethyl ether-7-O-β-D-rhamnopyranoside; Okanine-4′-O-β-D-(2″,4″,6″-triacetyl)-glucopyranoside; 4-O-(6″-O-p-coumaroyl-β-D-pyranone glucose)-p-coumaric acid; 4-O-(2″-O-acetyl-6″-O-p-coumaroyl-β-D-pyranone glucose)-p-coumaric acid; Isopropyl phthalate; Protocatechuic acid
白花鬼针草(Bidens pilosa var.radiata Schult.Bip.)为菊科植物白花鬼针草的全草,分布华东、中南及西南等地,具有清热解毒、利湿退黄、散瘀活血的功效,主治感冒发热、风湿痹痛、湿热黄疸、痈肿疮疖[1],体外抗肿瘤活性研究显示白花鬼针草乙酸乙酯部位具有显著抗结肠癌活性[2]。文献显示,有学者从白花鬼针草中分离鉴定了10个化学成分,主要为甾醇类与烷酸类化合物[3],但对其化学成分研究还有待完善与系统化,故本课题组再次探讨白花鬼针草醇提物化学成分,以为阐明白花鬼针抗结肠癌的活性成分奠定基础。……