Studies on the alkaloids from the herb of Corydalis adunca / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the alkaloid constituents of Corydalis adunca.</p><p><b>METHOD</b>The constituents were isolated on silica gel column and their structures were elucidated by IR, NMR, MS data.</p><p><b>RESULT</b>Eight alkaloid compounds were isolated from alcohol extracts of the herb of C. adunca, and identified as dihydrosanguinarine (I), tetrahydrocolumbamine (II), 1,2,3,4-tetrahydro-7-methoxy-1-[(4-methoxy)phenyl]methyl-8-quinolinol (III), protopine (IV) and 6-acetonyl-5,6-dihydrosanguinarine (V).</p><p><b>CONCLUSION</b>Five compounds were isolated from C. adunca for the first time.</p>