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    • 9. 发明公开
    • PREPARATION METHOD FOR MEDICINAL CHLOROGENIC ACID
    • 药用氯乙酸的制备方法
    • EP3225615A1
    • 2017-10-04
    • EP14906812.4
    • 2014-11-26
    • Sichuan Jiuzhang Biological Science And Technology Co., Ltd
    • ZHANG, JieZHANG, LiangHUANG, Wang
    • C07C69/732C07C67/48C07C67/52
    • C07C67/52A61K31/216B01D9/0022B01D9/04B01D11/02B01D2009/0086C07C35/14C07C39/10C07C67/48C07C67/56C07C69/732
    • The present invention provides a method for the preparation of pharmaceutically acceptable chlorogenic acid, which comprises the following steps: a. Treating the sample aqueous solution; b. Freezing; c. Thawing and filtering; d. Treating the residue organic phase; e. Concentrating and crystallizing; f. Choosing the number of times to repeat steps a∼e according to the variability of chlorogenic acid content in samples; g. Drying. If the chlorogenic acid extract is isolated and purified using this method, water-soluble impurities and liposoluble impurities can be well removed, that allows the impurity content of final products has fulfilled the requirements for medicine; meanwhile, the procedures of this method are simple, and organic solvents can be recycled for further use, with low cost. This method can be applied for the further isolation and purification of chlorogenic acid extract obtained by various ways, especially for the preparation of pharmaceutically acceptable chlorogenic acid.
    • 本发明提供了制备药学上可接受的绿原酸的方法,其包括以下步骤:a。 处理样品水溶液; 湾 冷冻; C。 解冻和过滤; d。 处理残余有机相; 即 浓缩和结晶; F。 根据样品中绿原酸含量的变化选择重复步骤a〜e的次数; G。 烘干。 如果使用该方法分离并纯化绿原酸提取物,则可以很好地去除水溶性杂质和脂溶性杂质,这使得最终产物的杂质含量已经满足了药物的要求; 同时该方法操作简单,有机溶剂可循环使用,成本低廉。 该方法可用于通过各种途径进一步分离纯化绿原酸提取物,特别是制备药学上可接受的绿原酸。