Using O=C(Nc1cc(Br)ccc1O)c1cc([N+](=O)[O-])ccc1F to produce O=[N+]([O-])c1ccc(F)c(-c2nc3cc(Br)ccc3o2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.