Using CNc1nc(Cl)cc(Cl)n1, [NH-]S(=O)(=O)c1ccc(Cl)cc1 to produce CNc1nc(Cl)cc(NS(=O)(=O)c2ccc(Cl)cc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.