【摘要】 从射干中分离得到一个新异黄酮及结构相似的两个异黄酮类化合物,即5,7,3′三羟基6,2′,5′三甲氧基异黄酮,5,7,3′三羟基6,4′,5′三甲氧基异黄酮(野鸢尾黄素)和它的苷(野鸢尾苷).它们的结构都通过1HNMR,13CNMR确定.新异黄酮的结构通过MS,HMBC,HSQC和NOESY进一步确定.更多还原

【Abstract】 A new isoflavone and two compounds with similar structures, namely 5, 7, 3′-trihydroxy-6, 2′, 5′-trimethoxyisoflavone, 5, 7, 3′-trihydroxy-6, 4′, 5′-trimethoxyisoflavone (irigenin) and its glucoside (iridin), were isolated from Belamcanda chinensis. The structures of these compounds were determined by 1H and 13C NMR spectroscopy. The structure of the new isoflavone was further verified by combined use of mass spectroscopy and 2D NMR techniques including HMBC, HSQC and NOESY.更多还原