Crystalline forms of duloxetine hydrochloride and processes for their preparation
申请人:KRKA, tovarna zdravil, d.d., Novo mesto
公开号:EP1820800A1
公开(公告)日:2007-08-22
The present invention relates to polymorphic forms of duloxetine hydrochloride, especially (duloxetine HCl), which are characterized by an X-ray diffraction pattern with peaks (2θ):9.6, 13.9, 18.0, 18.8, 19.2, 20.8, 27.4, 27.9 (designated form A) or an X-ray diffraction pattern with characteristic peaks (2θ): 12.0, 14.8, 19.8, 21.3, 21.6, 22.1, 22.4, 23.1, 24.1 (designated form T). The present invention also pertains to processes for the preparation of form A and form T, which involves dissolving duloxetine hydrochloride in particular solvents and cooling the solution to obtain crystals, that are dried.
本发明涉及盐酸度洛西汀的多晶形式,特别是具有X射线衍射图案峰值(2θ):9.6、13.9、18.0、18.8、19.2、20.8、27.4、27.9(指定为A形式)或具有X射线衍射图案特征峰值(2θ):12.0、14.8、19.8、21.3、21.6、22.1、22.4、23.1、24.1(指定为T形式)。本发明还涉及制备A形式和T形式的过程,其中涉及将盐酸度洛西汀溶解在特定溶剂中,并冷却溶液以获得晶体,然后将其干燥。