Using CC(C)(C(=O)O)C(F)(F)F, COc1ccc(NC(=O)c2cc(CN)ccc2Cl)cc1C(=O)Nc1ccc(Br)cc1 to produce COc1ccc(NC(=O)c2cc(CNC(=O)C(C)(C)C(F)(F)F)ccc2Cl)cc1C(=O)Nc1ccc(Br)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.