Using O=C1CC(=O)C2CCC1C2, O=C=Nc1ccc(Cl)c(C(F)(F)F)c1 to produce O=C(Nc1ccc(Cl)c(C(F)(F)F)c1)C1C(=O)C2CCC(C2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.