Using O=[N+]([O-])c1cc(F)c(F)cc1S(=O)(=O)Nc1ccc(Cl)c2cccnc12 to produce Nc1cc(F)c(F)cc1S(=O)(=O)Nc1ccc(Cl)c2cccnc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.