| abstract |
The present disclosure relates to a novel compound as a JAK inhibitor, a composition, and an application thereof. Specifically, the present disclosure provides a compound having high JAK inhibitory activity (as represented by formula (I)) or its isomer, solvate, hydrate, pharmaceutically-acceptable salt, and prodrug, and a pharmaceutical composition containing the compound. Also disclosed is a use of the present compound or pharmaceutical composition in preparation of a medicament for treating autoimmune diseases or cancers. (see formula I) |