Using Nc1ccnc(Cl)c1, O=[N+]([O-])c1ccc(F)c(F)c1 to produce O=[N+]([O-])c1ccc(Nc2ccnc(Cl)c2)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.