Using Oc1ccc(Cl)c(C(F)(F)F)c1, Cc1nc(Cl)c(Br)cc1[N+](=O)[O-] to produce Cc1nc(Oc2ccc(Cl)c(C(F)(F)F)c2)c(Br)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.