【摘要】 风干粉碎后的红姜花（Hedychium coccineum）根茎用工业甲醇浸提，甲醇浸提物用乙酸乙酯-水萃取。采用多种分离技术（硅胶柱层析、Sephadex LH-20、RP-18柱层析、HPLC）分离乙酸乙酯浸膏中的化学成分，通过NMR等方法对所得的化合物进行结构鉴定。共鉴定6个黄酮类化合物，分别是5-hydroxy-3,7,4’-trimethoxyflavone(1)、3,5-dihydroxy-7,4’-dimethoxyflavone(2)、kaempferol-4’-O-methylether(3)、ermanin(4)、dihydrokaempferide(5)、aromadendrin-7,4’-dimethyl ether(6)。均为首次从红姜花中分离得到。更多还原

【Abstract】 The air-dried and crushed rhizomes of Hedychium coccineum were extracted with MeOH, and the extract was partitioned with EtOAc-H2O. The EtOAc extract was isolated by various separation techniques(Silica gel, Sephadex LH-20, RP-18 column chromatography and HPLC). By means of spectroscopic analysis, the isolated compounds were identified as 5-hydroxy-3,7,4’-trimethoxyflavone(1), 3,5-dihydroxy-7,4’-dimethoxyflavone(2), kaempferol-4’-O-methylether(3), ermanin(4), dihydrokaempferide(5) and aromadendrin-7,4’-dimethyl ether(6). All the compounds were isolated from H. coccineum for the first time.更多还原