The present invention relates to a process for the preparation of pure ziprasidone. Thus, for example, ziprasidone tosylate was added to water and aqueous ammonia at room temperature, the contents were heated to 65 °C and maintained for 30 minutes, filtered, washed with water to obtain a wet solid, tetrahydrofuran was added to wet solid and maintained at reflux for 30 minutes. The separated solid was filtered and dried at 65 °C to obtain pure ziprasidone.
本发明涉及一种制备纯Ziprasidone的方法。例如,将Ziprasidone Tosylate加入
水和
水合
氨,在室温下加热到65℃并保持30分钟,过滤,用
水洗涤以得到湿固体,将
四氢呋喃加入湿固体并在回流下保持30分钟。分离得到的固体经过滤和在65℃下干燥,得到纯Ziprasidone。