申请人:Parthasaradhi Reddy Bandi
公开号:US20120178930A1
公开(公告)日:2012-07-12
The present invention provides novel polymorphs of raltegravir potassium, processes for their preparation and pharmaceutical compositions comprising them. Thus for example, raltegravir potassium was added to water and stirred for 15 minutes, the solution was filtered on hiflo bed and the bed washed with water, the resulting solution was subjected to freeze drying at −180 deg C. for 13 hours to give raltegravir potassium amorphous form.
本发明提供了Raltegravir钾的新型多晶型,其制备方法和包含它们的制药组合物。例如,将Raltegravir钾加入水中并搅拌15分钟,将溶液过滤在高流床上并用水洗涤床,将所得溶液在-180°C下冷冻干燥13小时,得到Raltegravir钾非晶态形式。