Using CO[C@H]1C[C@]2(C)C(=C(F)F)CC[C@H]2[C@@H]2CCc3cc(OC4CCCCO4)ccc3[C@H]21 to produce CO[C@H]1C[C@]2(C)C(=C(F)F)CC[C@H]2[C@@H]2CCc3cc(O)ccc3[C@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.