从朝鲜淫羊藿(EpeimediumkoreanumNadai)地上部分中分离得到二个新黄酮成分:朝藿素B(epimedokoreaninB)(Ix)和朝藿素C(epimedokoreaninC)(XV),经光谱分析证明,朝藿素B(IX)的结构为5,7,3`,4`-tetrahydroxyl-8,5`,-diprenylflavone;朝藿素c(xv)的结构为5,7,31`,7`-tetrahydroxyl-8-prenyl-2{[2`-(l-hydroxyl-l-methylethyl)-2`,3`-dihydrobenzofuran]-5`-yl}-chromone.