白藓化学成分研究

采用无水乙醇浸泡提取制得浸膏,再将浸膏加水混悬后依次用石油醚、乙酸乙酯和正丁醇萃取,制得几种提取物。用柱层析、高效液相色谱等进行分离,得到3种单体化合物,经^1H NMR、^13C NMR确定化合物的结构为β-谷甾醇、叶绿素和秽酬。     

Biological activity of Dictamnus dasycarpus against Mythimna setarata

Aim To gain the active compounds from Dictamnus dasycarpus.Method The solvent partition,preparative TLC,spectral analysis and bioassay are used to gain the active compounds.Results Fraxinellone is a ma...