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公开(公告)号:US20170037054A1
公开(公告)日:2017-02-09
申请号:US15302944
申请日:2014-12-31
发明人: Junbo GONG , Qi WANG , Qiuxiang YIN , Jingkang WANG , Xiaopeng Song , Baohong HOU , Liting LIAO , Duanming TAN , Ziyuan DI
IPC分类号: C07D495/04
CPC分类号: C07D495/04 , A61K31/425 , A61K31/4365 , A61K31/4743 , C07B2200/13
摘要: This invention provides a new preparation method of Clopidogrel Hydrogen Sulfate spherical crystal form I, using single 2-butanol as solvent, controlling the concentration, addition way and addition speed of sulfuric acid used to salify to shorten the process time, thus separating out Clopidogrel Hydrogen Sulfate from solution system stably with spherality. And the Clopidogrel Hydrogen Sulfate obtained complies with the requirements of the follow-up process on residual solvent, bulk density and mobility.
摘要翻译: 本发明提供了使用单一2-丁醇作为溶剂的氯吡格雷硫酸氢盐球形晶体I的新制备方法,控制用于成盐的硫酸的浓度,添加方式和加入速度以缩短处理时间,从而分离氯吡格雷氢 硫酸盐溶液体系稳定,具有球形度。 获得的氯吡格雷硫酸氢盐符合残留溶剂,体积密度和流动性的后续过程的要求。