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.
user
Cc1cnc(Nc2cnn(CC(=O)N3CCOCC3)c2)nc1-c1ccc(S(C)(=O)=O)cc1
assistant