Using O=[N+]([O-])c1cc(Cl)c(OC(F)(F)C(F)(F)F)cc1Cl to produce Nc1cc(Cl)c(OC(F)(F)C(F)(F)F)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.