Using NS(=O)(=O)c1ccccc1, Cn1c(Cl)nc2nc(Cl)nc(Cl)c21 to produce Cn1c(NS(=O)(=O)c2ccccc2)nc2nc(Cl)nc(Cl)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.