Using CC(C)(C)OC(=O)CBr, O=C(NCC(F)(F)CO)N[C@@](Cc1ccccc1)(c1cc(F)cc(OC(F)(F)C(F)F)c1)c1ccc(Cl)cn1 to produce CC(C)(C)OC(=O)COCC(F)(F)CNC(=O)N[C@@](Cc1ccccc1)(c1cc(F)cc(OC(F)(F)C(F)F)c1)c1ccc(Cl)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.