Using CC(C)(C)OC(=O)Nc1ccc(C(N)=S)cn1, CCOC(=O)C(Cl)C(C)=O to produce CCOC(=O)c1sc(-c2ccc(NC(=O)OC(C)(C)C)nc2)nc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.