Chemical constituents about the stem of Rabdosia excisa / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the constituents of the stem of Rabdosia excisa.</p><p><b>METHOD</b>Compounds were separated and purified by silica gel column chromatography and their structures were determined by spectroscopic method.</p><p><b>RESULT</b>Thirteen compounds isolated from this plant were identified as rabdesimte( 1 ), maoyecrystal E (2), 6beta,11alpha,15alpha-trihydroxy-6,7-seco-6,20-epoxy-1alpha, 7-ol-ide-ent-kaur-16-en (3), enmenol-glucoside (4), oridonol (5), macrocalyxin G (6), rabdosichuanin C (7), beta-sitosterol (8), ursolic acid (9), 2alpha-hydroxyursolic acid (10), maslinic acid ( 11 ), 2alpha,3alpha,19-trihydroxy-urs-12-en-28-oicacid (12), and daucosterol (13).</p><p><b>CONCLUSION</b>Except for compounds 5, 8, 9 and 13, the remaining compounds were found in R. excisa for the first time.</p>