Using COC(=O)C(CC1CCCCC1)c1ccc(-n2nnnc2C(F)(F)F)c(Cl)c1 to produce O=C(O)C(CC1CCCCC1)c1ccc(-n2nnnc2C(F)(F)F)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.