Using C=CCOC(=O)C(C(C)=O)C(CC(=O)Nc1cccc(C(F)(F)F)c1)c1ccc(C#N)cc1 to produce C=CCOC(=O)C1=C(C)N(c2cccc(C(F)(F)F)c2)C(=O)CC1c1ccc(C#N)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.