abstract |
The present invention relates to heterocyclic compounds suitable for inhibiting or regulating the activity of Janus kinase (JAK), particularly tyrosine kinase 2 (TYK2). Specifically, the present invention relates to compounds shown in Formula (I) and pharmaceutically acceptable salts thereof. The compounds of the present invention are useful for preventing and/or treating relevant JAK-mediated diseases, such as autoimmune diseases, inflammatory diseases, and cancers. The present invention also provides methods for preparing the compounds. |