Using O=[N+]([O-])c1cc(Br)c2nc(C(F)(F)F)[nH]c2c1, Cc1c(Cl)cccc1CBr to produce Cc1c(Cl)cccc1Cn1c(C(F)(F)F)nc2c(Br)cc([N+](=O)[O-])cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.