Using OB(O)c1ccc(F)cc1, CC(C)(C)OC(=O)N1CCN(c2ccc(Br)cc2)CC1 to produce CC(C)(C)OC(=O)N1CCN(c2ccc(-c3ccc(F)cc3)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.