Using Fc1ccc(CBr)cc1, CC(=O)N1CC(=O)Nc2ccccc21 to produce CC(=O)N1CC(=O)N(Cc2ccc(F)cc2)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.