Object of the present invention is an improved process for the preparation of Apixaban, through new intermediates which undergo to a faster amidation reaction. Impurities of Apixaban are also identified and quantified.
本发明的目的是通过更快发生酰胺化反应的新中间体,改进
阿哌沙班的制备工艺。本发明还对
阿哌沙班的杂质进行了鉴定和定量。