The invention provides compounds of formula (I): wherein X is (I) and the variables are defined in the specification, or a pharmaceutically-acceptable salt thereof, that are useful as JAK kinase inhibitors. The invention also provides pharmaceutical compositions comprising such compounds, methods of using such compounds to treat respiratory diseases, and processes and intermediates useful for preparing such compounds.
                            该发明提供了式(I)的化合物:其中X是(I),变量在规范中定义,或其药用盐,这些化合物可用作JAK激酶
抑制剂。该发明还提供了包括这些化合物的药物组合物,使用这些化合物治疗呼吸道疾病的方法,以及用于制备这些化合物的过程和中间体。