Using O=[N+]([O-])c1cccc(CBr)c1, Cc1nc(-c2nc(-c3ccc(OC(F)(F)F)cc3)no2)n[nH]1 to produce Cc1nc(-c2nc(-c3ccc(OC(F)(F)F)cc3)no2)nn1Cc1cccc([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.