Using COCC1CCC(c2ccc(-c3ccc(OC(F)(F)F)cc3)cc2)CC1 to produce OCC1CCC(c2ccc(-c3ccc(OC(F)(F)F)cc3)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.