Using O=Cc1cc(O)c(Br)cc1Br, O=[N+]([O-])c1ccc(F)c(F)c1 to produce O=Cc1cc(Oc2ccc([N+](=O)[O-])cc2F)c(Br)cc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.