Using CCCCCCC(=O)c1cnc(-c2ccc(C(F)(F)F)cc2)nc1 to produce CCCCCCC(O)c1cnc(-c2ccc(C(F)(F)F)cc2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.