Using CC(=Cc1ccccc1)S(N)(=O)=O, O=C(Cl)c1ccc(Cl)cc1Cl to produce CC(=Cc1ccccc1)S(=O)(=O)NC(=O)c1ccc(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.