Using O=C1C=C(Nc2cccc(C(F)(F)F)c2)CC(C(=O)O)C1, O=C=NC(Cl)c1ccc(Br)cc1 to produce O=C1CC(C(=O)O)CC2=C1C(c1ccc(Br)cc1)NC(=O)N2c1cccc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.