Using CC(C)(C)OC(=O)NCC(F)(F)C(O)C(Cc1ccccc1)NC(=O)OCc1ccccc1 to produce CC(C)(C)OC(=O)NCC(F)(F)C(O)C(N)Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.