Using O=[N+]([O-])c1ccc(F)cc1, Oc1c(Br)cc(Br)cc1Br to produce O=[N+]([O-])c1ccc(Oc2c(Br)cc(Br)cc2Br)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.