Using CC(=O)OCC(=O)Nc1cc(F)cc(C(=O)NCC(F)(F)F)c1O, BrCc1ccccc1 to produce CC(=O)OCC(=O)Nc1cc(F)cc(C(=O)NCC(F)(F)F)c1OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.