Using NS(=O)(=O)c1ccccc1, O=C(O)c1cc2ccccc2n1Cc1ccc(Cl)c(Cl)c1 to produce O=C(NS(=O)(=O)c1ccccc1)c1cc2ccccc2n1Cc1ccc(Cl)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.