Saponins from roots of Stephanotis mucronata / 中国中药杂志

<p><b>OBJECTIVE</b>To study the chemical constituents from n-BuOH fraction of the roots of Stephanotis mucronata.</p><p><b>METHOD</b>The compounds were separated by chromatographic methods. A combination of UV, MS, and NMR spectroscopic methods was applied to identify structure of these compounds.</p><p><b>RESULT</b>Four oleane saponins were isolated and identified as sitakisoside VII (1), sitakisoside VI (2), sitakisoside II (3), and sitakisoside I (4).</p><p><b>CONCLUSION</b>These four compounds were obtained for the first time from this plant.</p>