Using OC1CCC(COCc2cc(C(F)(F)F)cc(C(F)(F)F)c2)(c2ccccc2)C1 to produce O=C1CCC(COCc2cc(C(F)(F)F)cc(C(F)(F)F)c2)(c2ccccc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.