Using CCO, O=S(=O)(Nc1ccc2c(Cl)nccc2c1)c1ccc(Cl)cc1 to produce CCOc1nccc2cc(NS(=O)(=O)c3ccc(Cl)cc3)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.