In one aspect, the invention provides a compound according to formula I, as well as tautomers, pharmaceutically acceptable salts, and hydrates thereof. Pharmaceutical compositions, methods of inhibiting Janus kinases (JAKs), and methods for treating a condition or disorder mediated at least in part by JAK kinase activity are also described.
在一个方面,该发明提供了一个符合式I的化合物,以及其互变异构体、药用盐和
水合物。还描述了药物组合物、抑制JAK(Janus激酶)的方法,以及治疗至少部分由JAK激酶活性介导的情况或疾病的方法。