Studies on the flavonoid constituents in herb of Eremosparton songoricum / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the chemical constituents from Eremosparton songoricum.</p><p><b>METHOD</b>The compounds were isolated with silica gel column chromatography and the structures of these compounds were elucidated by means of spectral analysis.</p><p><b>RESULT</b>The seven compounds were identified as 5,7,4'-trihydroxyflavone (apigenin) (I), 5-hydroxy-7,4'-dimethoxyflavone (II), 5,7-dihydroxy-3',4'-dimethoxyflavone (III), 5,7-dihydroxy-4'-methoxyflavone (acacetin) (IV), 5,7,4'-trihydroxy-3'-methoxyflavone (chrysoeriol) (V), 5,6,3',4'-tetrahydroxy-7-methoxyflavone (pedalitin) (VI) and 5,4'-dihydroxy-7,3'-dimethoxyflavone-4'-O-D-glucoside (flavogadorinin) (VII).</p><p><b>CONCLUSION</b>These constituents were obtained from E. songoricum for the first time.</p>