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Ondansetron, a highly selective 5‐hydroxytryptamine 3 receptor antagonist, was successfully enantioseparated by recycling countercurrent chromatography using sulfobutyl ether‐β‐cyclodextrin as chiral selector. Important factors for the enantioseparation were optimized, including different organic solvent, type of substituted β‐cyclodextrin, pH of aqueous phase, concentration of chiral selector, and...
2‐(4‐Chlorophenyl)succinic acid was successfully enantioseparated by countercurrent chromatography using hydroxypropyl‐β‐cyclodextrin as chiral selector. A two‐phase solvent system composed of n‐hexane‐ethyl acetate‐0.1 mol/L phosphate buffer with pH 2.65 (5:5:10, v/v) was selected. Enantioselective liquid–liquid extraction was used to optimize the enantioseparation conditions. Meanwhile, the influence...
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