Using CC(C)(C)OC(=O)N1CC(N)C1, O=C(O)CNC(=O)c1cccc(C(F)(F)F)c1 to produce CC(C)(C)OC(=O)N1CC(NC(=O)CNC(=O)c2cccc(C(F)(F)F)c2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.