发明公开
EP1862447A2 Novel processes for preparing sertraline hydrochloride crystalline forms 审中-公开
用于制备结晶形式的盐酸舍曲林的新过程

Novel processes for preparing sertraline hydrochloride crystalline forms
摘要:
The present invention discloses novel and improved processes for preparation of sertraline hydrochloride crystalline form II. Thus, for example, sertraline free base is dissolved in isoamyl alcohol at 25 - 30°C, pH of the mass is adjusted to 2.0 with conc. hydrochloric acid (36%) at 25 - 30°C and then stirred for 14 hours at 25 - 30°C. Filtered the solid and dried at 65°C for 4 hours to give sertraline hydrochloride crystalline form II. The present invention also provides a novel process for preparation of sertraline hydrochloride crystalline form 1.
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