You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a tyk2 inhibitor and is autoimmune treatment.
user
CNC(=O)c1ccc2cc1Nc1cc(NC)n3ncc(c3n1)C(=O)NC(C)COC2
assistant