Using COC(=O)CCC(C#N)(CCC(=O)OC)c1ccc(OC)c(OC(F)F)c1 to produce COC(=O)C1CC(C#N)(c2ccc(OC)c(OC(F)F)c2)CCC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.