- 专利标题: Separation and purification method for vancomycin hydrochloride of high purity
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申请号: US15033116申请日: 2014-10-27
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公开(公告)号: US10131689B2公开(公告)日: 2018-11-20
- 发明人: Enmin Li , Yiyun Zhuang , Jue Wang , Xinqiang Sun , Xuejun Lao , Biwang Jiang
- 申请人: Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory
- 申请人地址: CN Xinchang County
- 专利权人: Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory
- 当前专利权人: Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory
- 当前专利权人地址: CN Xinchang County
- 代理机构: Lipton, Weinberger & Husick
- 代理商 Ash Tankha
- 优先权: CN201310537310 20131101
- 国际申请: PCT/CN2014/000950 WO 20141027
- 国际公布: WO2015/062168 WO 20150507
- 主分类号: C07K1/36
- IPC分类号: C07K1/36 ; C07K9/00 ; A61K38/14 ; C07K1/20 ; C07K1/34
摘要:
Provided is a separation and purification method for vancomycin hydrochloride of high purity. The method comprises the following steps: (1) obtaining a vancomycin hydrochloride solution from a crude vancomycin product by ion exchange chromatography and obtaining a concentrate by nanofiltration desalination and concentration; (2) adjusting the concentrate with a hydrochloric acid solution and then performing a column chromatography using a reverse chromatography column for the adjusted concentrate; (3) collecting the chromatographic solution of vancomycin to obtain a mixed chromatographic solution; (4) adjusting the mixed chromatographic solution, and separating the solution and the salts by nanofiltration desalination and concentration to obtain a concentrate; and (5) obtaining a vancomycin dry powder with a chromatographic purity of up to 99% and a pure white appearance by dehydrating and drying the concentrate of step (4), or by solvent crystallization or salting-out crystallization.
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