Preparation for 6-amino-1H-pyrazolo[3,4-d]pyrimidine-based JAK kinase inhibitor and application thereof

Abstract

A medicament with excellent JAK kinase (Janus Kinase) inhibitory activity can be used to prevent, treat and/or improve an autoimmune disease (e.g., psoriasis, rheumatoid arthritis, inflammatory bowel disease, Sjogren's syndrome, Behcet's disease, multiple sclerosis, systemic lupus erythematosus and the like). The present invention also provides a pharmaceutically acceptable composition containing the compound and a method for preparing these compounds.

Dependencies are inferred from the claim text.