Constituents of onopordon alexandrine

Constituents of Onopordon alexandrinum were extracted, defatted and analyzed using column chromatography to give taraxasterol [1], lupeol [2], beta-sitosterol [3], stigmasterol [4], scutellarein 4'-methyl ether [5] and takakin [6]. The structure of the hitherto isolated products were inferred by high-field 1H-NMR spectroscopy