Using Nc1ccc(Cl)cc1F, O=[N+]([O-])c1cc2c(Cl)ncnc2cc1Cl to produce O=[N+]([O-])c1cc2c(Nc3ccc(Cl)cc3F)ncnc2cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.