Semi-Preparative Separation of Taraxeryl-Acetate and Coumarins fromArtemisia DalailamaeKraschen by High-Speed Countercurrent Chromatography

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Abstract
High-speed countercurrent chromatography (HSCCC) has been successfully applied to the semi-preparative separation of taraxeryl-acetate, isofraxidin and scopoletin from Artemisia dalailamae Kraschen. The separations were performed with a two-phase solvent system composed of chloroform-methanol-water (2:2:1, v/v/v). The main three pure fractions were analyzed by MS, IR, NMR etc. for structure determination. The results indicate that the method is suitable for semi-preparative separations of these compounds.