Using CC(C)(C)OC(=O)N1CC=C(CCl)C1, Nc1ccc(C(F)(F)F)cc1Br to produce CC(C)(C)OC(=O)N1CC=C(CNc2ccc(C(F)(F)F)cc2Br)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.