Separation of pyridine derivatives from
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Shengqiang Tong; Jizhong Yan; Jian Li; Jianzhong Lou
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Article
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2007
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John Wiley and Sons
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English
β 463 KB
## Abstract Three novel pyridine derivatives were successfully separated from their partially purified synthetic mixtures by pHβzoneβrefining counterβcurrent chromatography using a multilayer coil planet centrifuge designed in our laboratory. After equilibration of a twoβphase solvent system consis