2012•Huaxi yaoxue zazhiRequires access

Study on triterpenoids from the roots of Ilex asprella

Chenchen Zhu

Abstract

OBJECTIVE To study the constituents from the roots of Ilex asprella.METHODS The chemical constituents were isolated by silica gel,Sephadex LH-20,as well as reverse phase column chromatography.Their structures were identified on the basis of physicochemical properties and spectral analysis.RESULTS Nine compounds were isolated and identified as 3β-O-acetyluvaol(Ⅰ),3β-O-acetylursolic acid(Ⅱ),siaresinolic acid(Ⅲ),oleanolic acid(Ⅳ),cafeic acid(Ⅴ),ursolic acid(Ⅵ),2,3,19-trihydroxy-urs-12-ene-23,28-dioic acid(Ⅶ),β-sitosterol(Ⅷ) and daucosterol(Ⅸ),respectively.CONCLUSION Compounds Ⅰ-Ⅴ are isolated from Ilex asprella for the first time.

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Key concepts: Chemistry, Ursolic acid, Oleanolic acid, Daucosterol, Silica gel, Sephadex, Chromatography, Chemical constituents