Using CC(=O)[C@@H]1C[C@H](NC(=O)OC(C)(C)C)CC[C@@H]1N, O=C(O)CNC(=O)c1cccc(C(F)(F)F)c1 to produce CC(=O)[C@@H]1C[C@H](NC(=O)OC(C)(C)C)CC[C@@H]1NC(=O)CNC(=O)c1cccc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.