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    • 7. 发明授权
    • Crystalline forms of 11β-(4-acetylphenyl)-20,20,21,21,21-pentafluoro-17-hydroxy-19-nor-17α-pregna-4,9-dien-3-one
    • 11β-(4-乙酰基苯基)-20,20,21,21,21-五氟-17-羟基-19-去甲-17α-孕甾-4,9-二烯-3-酮的结晶形式
    • US07910573B2
    • 2011-03-22
    • US11757118
    • 2007-06-01
    • Wolfgang BeckmannGabriele WinterEdda KraemerThomas GinkoEvelin AmoulongArwed Cleve
    • Wolfgang BeckmannGabriele WinterEdda KraemerThomas GinkoEvelin AmoulongArwed Cleve
    • A01N29/12A61K31/03C07C49/00
    • C07J1/0081
    • The present invention relates to crystalline forms of 11β-(4-acetylphenyl)-20,20,21,21,21-pentafluoro-17-hydroxy-19-nor-17α-pregna-4,9-dien-3-one. The invention relates in particular to two crystalline ansolvate/anhydrate forms of this compound, polymorphs I and II. However, the present invention also relates to crystalline solvates, for example methanol and ethanol solvates of 11β-(4-acetylphenyl)-20,20,21,21,21-pentafluoro-17-hydroxy-19-nor-17α-pregna-4,9-dien-3-one as precursors for preparing these two polymorphs I and II. Processes for preparing polymorph I by displacement crystallization or by trituration are described. Selection of the last solvent before formation of the ansolvate can be based on the differences in the purification behaviour of the individual solvates of 11β-(4-acetylphenyl)-20,20,21,21,21-pentafluoro-17-hydroxy-19-nor-17α-pregna-4,9-dien-3-one. Polymorph I according to the invention is particularly suitable for the manufacture of medicinal products.
    • 本发明涉及11β-(4-乙酰基苯基)-20,20,21,21,21-五氟-17-羟基-19-去甲-17α-孕甾-4,9-二烯-3-酮的结晶形式 。 本发明特别涉及这种化合物的两种结晶固体/无水物形式,即多晶型物I和II。 然而,本发明还涉及结晶溶剂合物,例如11β-(4-乙酰基苯基)-20,20,21,21,21-五氟-17-羟基-19-去甲基-17α-前体的甲醇和乙醇溶剂合物 -4,9-二烯-3-酮作为制备这两种多晶型I和II的前体。 描述了通过置换结晶或研磨制备多晶型I的方法。 在形成溶剂化物之前,最后一种溶剂的选择可以基于11&bgr-(4-乙酰基苯基)-20,20,21,21,21-五氟-17-羟基 - 19-nor-17α-前 - 4,9-二烯-3-酮。 根据本发明的多晶型I特别适用于制造药用产品。