Using N=C(N)C(F)(F)F, O=C(CBr)c1ccc([N+](=O)[O-])cc1 to produce O=[N+]([O-])c1ccc(-c2cnc(C(F)(F)F)[nH]2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.