Using OB(O)c1ccc(OC(F)(F)F)cc1, COC(=O)c1cc(Br)ccc1N to produce COC(=O)c1cc(-c2ccc(OC(F)(F)F)cc2)ccc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.