鲜鱼腥草的黄酮类化合物研究

目的：研究三白草科Saururaceae蕺菜属植物蕺菜Houttuynia cordata的黄酮类化学成分。方法：利用Diaion HP-20,Sephadex LH-20,ODS和硅胶柱色谱进行分离纯化,根据化合物的理化性质和光谱数据鉴定结构。结果：分离得到5个化合物,分别鉴定为槲皮素-3-O-β-D-半乳糖-7-O-β-D-葡萄糖苷(1),山柰酚-3-O-β-D-［α-L-吡喃鼠李糖(1→6)］吡喃葡萄糖苷(2),槲皮苷(3),金丝桃苷(4),槲皮素-3-O-α-D-鼠李糖-7-O-β-D-葡萄糖苷(5)。结论：化合物1,2,5为首次从该属及本植物中分离得到。

Study on chemical constituents of flavonoids in fresh herb of Houttuynia cordata

OBJECTIVE: To study the flavonoid constituents in fresh herb of Houttuynia cordata. METHOD: Various column packing materials including Diaion HP - 20, Sephadex LH - 20, ODS and silica gel were employed for the isolation and purification of compounds from H. cordata. The structures of the compounds were identified by physiochemical properties and spectral analysis. RESULT: Five compounds were isolated, and their structures were identified as quercetin-3-O-beta-D-galactoside-7-O-beta-D-glucoside (1), kaempferol-3-O-alpha-L-rhamnopyranosyl-(1 --> 6)-beta-D-glucopyranoside (2), quercitrin (3), hyperin (4), quercetin 3-O-alpha-L-rhamnopyranosyl-7-O-beta-D-glucopyranoside (5). CONCLUSION: Compounds 1, 2 and 5 were separated from H. cordata for the first time.