The present invention relates to novel hemioxalate salt of eletriptan, process for preparation, pharmaceutical compositions, and method of treating thereof. The present invention relates to solid forms of eletriptan hemioxalate, processes for preparation, pharmaceutical compositions, and method of treating thereof. The solid form of eletriptan hemioxalate is useful for preparing eletriptan free base or a pharmaceutically acceptable salt thereof, particularly eletriptan hydrobromide, in high purity. The present invention also provides a process for preparing substantially pure eletriptan hydrobromide using eletriptan hemioxalate.
本发明涉及eletriptan的新型
草酸盐、制备方法、制药组合物和治疗方法。本发明涉及eletriptan
草酸盐的固态形式、制备方法、制药组合物和治疗方法。eletriptan
草酸盐的固态形式可用于制备eletriptan的自由碱基或其药学上可接受的盐,特别是高纯度的eletriptan羟
溴化物。本发明还提供了一种使用eletriptan
草酸盐制备基本纯净的eletriptan羟
溴化物的方法。