The invention provides a compound of formula 1
or a pharmaceutically-acceptable salt thereof, that is useful as a JAK inhibitor. The invention also provides crystalline forms of the compound, pharmaceutical compositions comprising the compound, methods of using the compound to treat diseases amenable to a JAK inhibitor, and processes and intermediates useful for preparing the compound.
本发明提供了一种式 1 的化合物
或其药学上可接受的盐,可用作
JAK 抑制剂。本发明还提供了该化合物的结晶形式、包含该化合物的药物组合物、使用该化合物治疗适合
JAK 抑制剂的疾病的方法,以及制备该化合物的有用工艺和中间体。