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US07632971B2 Method of crystallization of bicalutamide 失效
比卡鲁胺结晶方法

Method of crystallization of bicalutamide
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.
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