Using Nc1cc(F)ccc1[N+](=O)[O-], O=[N+]([O-])c1cnc(Cl)nc1NCc1c(F)cccc1F to produce O=[N+]([O-])c1ccc(F)cc1Nc1ncc([N+](=O)[O-])c(NCc2c(F)cccc2F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.