2010•ZhongcaoyaoRequires access

Chemical constituents from roots of Ilex asprella

Yan Cai, Qingwen Zhang, Zhijun Li, Chun‐Lin Fan, Lei Wang, Xiao‐Qi Zhang, Wen‐Cai Ye

Abstract

Objective To investigate the chemical constituents from the roots of Ilex asprella.Methods The chemical constituents were isolated by silica gel,Sephadex LH-20,as well as RP-HPLC column chromatography.Their structures were identified on the basis of physicochemical properties and spectral analysis.Results Ten triterpenes and triterpenoid saponins were isolated and identified as 28O-β-D-glucopyranosyl pomolic acid(1),ilexoside XXIX(2),ilexoside B(3),monepaloside F(4),oblonganoside B(5),3-O-β-D-xylopyranosyl-3β-hydroxyurs-12,18(19)-dien-28-oic acid 28-β-D-glucopyranosyl ester(6),ilexsaponin B(7),randialic acid B(8),ilexolic acid(9),and 19-dehydroursolic acid(10),respectively.Conclusion Compounds 1-9 are isolated from I.asprella for the first time.

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Key concepts: Sephadex, Chemistry, Chemical constituents, Silica gel, Column chromatography, Chromatography, Terpene, Spectral analysis