申请人:Shrawat Vimal Kumar
公开号:US20130217888A1
公开(公告)日:2013-08-22
The present invention provide processes for the preparation of Bendamustine hydrochloride monohydrate of formula (I)
The present application also provides a process of purification of Bendamustine hydrochloride or monohydrate to get substantially pure Bendamustine hydrochloride monohydrate crystalline Form-SM. The said Bendamustine hydrochloride monohydrate crystalline Form-SM is characterized by X-ray powder diffraction pattern comprising at least 5 characteristic peaks selected from the XRPD 2 theta degrees peaks at 7.42, 10.60, 11.17, 16.43, 17.94, 22.89, 26.33, 28.77, 30.28, 31.92, 40.89±0.1 2θ°.
The present application also provides a process for the preparation of Bendamustine hydrochloride monohydrate crystalline Form-SM useful in making pharmaceutical composition for the treatment of cancer or similar proliferative disorders.
本发明提供了制备盐酸苯达莫司汀单水合物的方法,其化学式为(I)。本申请还提供了一种用于纯化盐酸苯达莫司汀或单水合物以获得基本纯净的苯达莫司汀单水合物结晶形式-SM的方法。所述的苯达莫司汀单水合物结晶形式-SM的特征是X射线粉末衍射图谱,包括至少5个特征峰,这些峰从XRPD 2θ角度的峰中选择,分别为7.42、10.60、11.17、16.43、17.94、22.89、26.33、28.77、30.28、31.92、40.89±0.12θ°。本申请还提供了一种制备盐酸苯达莫司汀单水合物结晶形式-SM的方法,用于制备用于治疗癌症或类似增殖性疾病的药物组合物。