Using Cc1ccc(S(=O)(=O)Nc2ccc(Cl)cc2Cl)cc1, COS(=O)(=O)OC to produce Cc1ccc(S(=O)(=O)N(C)c2ccc(Cl)cc2Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.