Studies on triterpenoid constituents from Rabdosia japonica var. galaucocalyx / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the chemical constitutes in Rabdosia japonica var. galaucocalyx .</p><p><b>METHOD</b>The compounds were isolated by nomal phase silica gel chromatography. The structures were identified by physical and spectral data.</p><p><b>RESULT</b>Nine triterpenoids were isolated and identified as friedelin (I), 3beta, 28-dihydroxy-ursane (II), ursolic acid (III), 3beta-acetyloxy-ursolic acid (IV), 2alpha, 3alpha-dihydroxy-urs-12-en-28-oic acid (V), 2alpha, 3alpha, 23-trihydroxy-urs-12-en-28-oic acid (VI), oleanic acid (VII), beta-sitosterol (VIII), daucousterol (IX).</p><p><b>CONCLUSION</b>Compounds I, II, IV, V and VI were isolated from R. japonica var. galaucocalyx for the first time.</p>