[目的]研究17-甲氧基-7-羟基-苯并呋喃查尔酮的分离方法及晶体结构.[方法]利用液液萃取、硅胶柱色谱、重结晶等方法进行目标物的分离,并通过IR、NMR、ESI-MS、X-射线单晶衍射等手段鉴定晶体结构.[结果]晶体结构分析结果表明,该化合物为单斜晶系,空间群P2(1)/c,晶胞主要参数:a=10.881 3(16)nm,b=9.795 4(14)nm,c=13.347 3(19)nm,V=1 382.2(3)nm,Z=4,Dc=1.414mg/m,F(000)=616,μ=0.100/mm.[结论]从玉郎伞[Millettia Pulchra Kurz var.Laxior(Dunn)Z.Wei]的60%(体积分数)乙醇水提取物中首次分离并鉴定了17-甲氧基-7-羟基-苯并呋喃查尔酮.%[ Objective ] To study the isolation method and the crystal structure of 17-methoxyl-7-hydroxy-benzfuranchalcone. [ Method ] Liquid-liquid extraction ,column chromatography and recrystallisation were used for isolation. IR, NMR, ESI-MS and crystal X-ray diffraction were taken to identify the crystal structure. [Result]The crystal is in monoclinic system with space group P2( 1 )/c,and the unit cell parameters are as follows:a=10.881 3(16)nm,b =9.795 4(14)nm,c =13.347 3(19)nm,α=90°,μ=l03.697(2)°,γ=90°,V=1 382.2(3) nm3,Z=4,Dc = 1.414 mg/m3 ,F(000) =616,μ = 0. 100/mm. [ Conclusion] 17-methoxyl-7-hydroxy-benzfuranchalcone was firstly isolated from Millettia Pulchra Kurz var. Laxior (Dunn) Z. Wei and its crystal structure was characterized.
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