Using O=C(NCC(F)(F)C(=O)O)N[C@](Cc1ccccc1)(c1ccc(F)cc1)c1cc(F)cc(OC(F)(F)C(F)F)c1, CCN(CC)CC to produce NC(=O)C(F)(F)CNC(=O)N[C@](Cc1ccccc1)(c1ccc(F)cc1)c1cc(F)cc(OC(F)(F)C(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.