Using CCCCC[C@H]1CC[C@H]([C@H]2CC[C@H](C=CC(F)(F)Oc3cc(F)c(F)c(F)c3)CC2)CC1 to produce CCCCC[C@H]1CC[C@H]([C@H]2CC[C@H](CCC(F)(F)Oc3cc(F)c(F)c(F)c3)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.