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Large-Scale Isolation and Purification of Scoparone from Herba artemisiae scopariae by High-Speed Counter-Current Chromatography
Authors:C H Ma  W Ke  Z L Sun  J Y Peng  Z X Li  X Zhou  G R Fan  C G Huang
Institution:(1) Shanghai Institute of Materia Medica, Shanghai Institute for Biological Science, Chinese Academy of Sciences, Shanghai, 201203, China;(2) Center of Research and Development on Life Sciences and Enviromental Sciences, Harbin University of Commerce, Harbin, 150076, China;(3) Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, No. 325 Guohe Road, Shanghai, 200433, China
Abstract:A preparative high-speed counter-current chromatography with a two-phase solvent system composed of n-hexane-ethyl acetate-methanol- water (1:1:0.45:1.55, v/v/v/v) was successfully performed to isolate scoparone (6,7-dimethoxycoumarin, 6,7-dimethylesculetin, 6,7-DME) from the plant of Herba artemisiae scopariae, a traditional Chinese medicine. 233.5 mg Scoparone with the purity of 96.8% (determined by HPLC) was obtained in one-step elution from 800 mg crude extract. The recovery of scoparone was 91.8%, and the chemical structure of this compound was identified by IR, MS, 1H NMR and 13C NMR spectrum.
Keywords:Column liquid chromatography  Counter-current chromatography  Coumarin compounds  Scoparone  Herba artemisiae scopariae  Artemisia capillaries and Artemisia scoparia
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