Using CC(C)(C)OC(=O)N1CCC(N)(C(N)=O)CC1, O=C(O)c1ccc(C(F)(F)F)cc1F to produce CC(C)(C)OC(=O)N1CCC(NC(=O)c2ccc(C(F)(F)F)cc2F)(C(N)=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.