发明授权
- 专利标题: Method of crystallization of bicalutamide
- 专利标题(中): 比卡鲁胺结晶方法
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申请号: US11571956申请日: 2005-07-13
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公开(公告)号: US07632971B2公开(公告)日: 2009-12-15
- 发明人: Tadashi Katsura , Tadashi Mizuno , Nobushige Itaya
- 申请人: Tadashi Katsura , Tadashi Mizuno , Nobushige Itaya
- 申请人地址: JP Tokyo
- 专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人地址: JP Tokyo
- 代理机构: Foley & Lardner LLP
- 优先权: JP2004-207709 20040714
- 国际申请: PCT/JP2005/013346 WO 20050713
- 国际公布: WO2006/006736 WO 20060119
- 主分类号: C07C233/05
- IPC分类号: C07C233/05 ; C07C255/50
摘要:
The present invention provides a method of crystallization of bicalutamide comprising adding an acetone solution containing bicalutamide to water; crystals of bicalutamide wherein particle size distribution of the crystals is 1 to 10 μm of Dp10, 10 to 25 μm of Dp50 and 25 to 100 μm of Dp90, and the crystals are obtainable by the method described above; and crystals of bicalutamide, wherein particle size distribution of the crystals is 1 to 3 μm of Dp10, 2 to 5 μm of Dp50 and 5 to 15 μm of Dp90.
公开/授权文献
- US20070238900A1 Method of Crystallization of Bicalutamide 公开/授权日:2007-10-11
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