Chemical constituents of roots of Boehmeria nivea / 中国中药杂志

<p><b>OBJECTIVE</b>To investigate the chemical constituents from roots of Boehmeria nivea.</p><p><b>METHOD</b>The constituents were isolated by repeated column chromatography and preparative liquid chromatography; and their structures were elucidated by chemical properties and spectroscopic analyses.</p><p><b>RESULT</b>Seven compounds were isolated and their structures were identified as tormentic acid (1), hederagenin (2), maslinic acid (3), 2alpha-hydroxyursolic acid (4), trans-p-hydroxycinamic acid (5), 2,4,4'-trihydroxychalcone (6), rutin (7).</p><p><b>CONCLUSION</b>Compounds 1-6 were obtained from this genus for the first time.</p>