摘要 |
<p>The invention provides TYK2 inhibitors of Formulas (la-lb), stereoisomers or pharmaceutically acceptable salts thereof, wherein A, X, Ra, R1, R2, R4, R5 and R16 are defined herein, a pharmaceutical composition that includes a compound of Formulas (la-lb) and a pharmaceutically acceptable carrier, adjuvant or vehicle, and methods of using the compound or composition in the therapy of inflammatory diseases.</p> |