Using CC(C)C1CN(c2ccc(C(F)(F)F)nc2)C(=O)N1, O=C(CCl)Nc1cccc(C(F)(F)F)c1 to produce CC(C)C1CN(c2ccc(C(F)(F)F)nc2)C(=O)N1CC(=O)Nc1cccc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.