A compound having the structure of below Formula (I), or pharmaceutically acceptable salts thereof, are useful as JAK inhibitors,
wherein R1, R2, L1, L2, T and X are as herein described.
具有下式(I)结构的化合物或其药学上可接受的盐类可用作
JAK 抑制剂、
其中 R1、R2、L1、
L2、T 和 X 如本文所述。