Using COC(=O)CC#N, CCOC(=O)C=Cc1cc(F)c(F)cc1F to produce COC(=O)CC(c1cc(F)c(F)cc1F)C(C#N)C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.