Using Cc1cc(Br)ccc1C(=O)C=C(c1cc(Cl)cc(Cl)c1)C(F)(F)F, NO to produce Cc1cc(Br)ccc1C1=NOC(c2cc(Cl)cc(Cl)c2)(C(F)(F)F)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.