Using OB(O)c1cc(F)cc(F)c1, CON(C)C(=O)c1nc2cccc(C)n2c1Br to produce CON(C)C(=O)c1nc2cccc(C)n2c1-c1cc(F)cc(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.