Using O=CCCC1CCC(CCc2ccc(OC(F)(F)F)c(F)c2)CC1 to produce OCCCC1CCC(CCc2ccc(OC(F)(F)F)c(F)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.