Provided are a JAK kinase inhibitor, preparation and use thereof. In particular, provided is a compound of Formula I, wherein each group is as described in the specification. The compound has an excellent JAK inhibitory activity, and therefore can be used to prepare pharmaceutical compositions for the treatment of cancer and other diseases related to JAK activity.
本发明提供了一种 JAK 激酶
抑制剂及其制备方法和用途。特别是提供了一种式 I 的化合物,其中各基团如说明书所述。该化合物具有优异的 JAK 抑制活性,因此可用于制备治疗癌症和其他与 JAK 活性相关疾病的药物组合物。