Using Oc1ccc(Cl)cc1Cl, O=[N+]([O-])c1cc(F)ccc1F to produce O=[N+]([O-])c1c(F)cccc1Oc1ccc(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.