Using CCCC1CCC(C2C=Cc3c(c(F)c(F)c4cc(OCC)ccc34)O2)CC1 to produce CCCC1CCC(C2CCc3c(c(F)c(F)c4cc(OCC)ccc34)O2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.