板栗花中一个新木脂苷类化合物

A new lignan glycoside from the flower of Castanea mollissima Blume

摘要: 目的研究板栗花的活性成分。方法通过柱色谱进行分离，利用波谱数据综合解析鉴定化合物结构。结果从乙酸乙酯部位得到5个化合物，分别鉴定为杨梅树皮素(I)、槲皮素(II)、没食子酸(III)、4-喹啉酮-2-羧酸(IV)和(+)-异落叶松树脂醇-9′-O-α-L-鼠李糖苷(V)。结论I~V均为首次从板栗花中得到，其中化合物V为新化合物，命名为栗木脂苷。

Abstract: AimTo study the bioactive constituents of the flower of Castanea mollissima Blume. MethodsCompounds were isolated and purified by column chromatography of silica gel and TLC. Structures were determined by various spectroscopic data, including IR, ¹HNMR and ¹³CNMR, EIMS, FABMS and HMBC as well as comparison of the data with those reported in literatures. ResultsFive compounds were isolated and elucidated as myricetin (I)， quercetin (II)， gallic acid (III)， 4-quinolinone-2-caboxylic acid (IV)， (+)-isolariciresinol-9′-O-α-L-rhamnoside (V). Conclusion These compounds were separated from the flower for the first time and compound V is a new compounds, named chestnutlignansoide.