Using CC[C@]12CC[C@@H]3c4ccc(OC)cc4C(C)C[C@H]3[C@@H]1CCC2=O to produce CC[C@]12CC[C@@H]3c4ccc(OC)cc4C(C)C[C@H]3[C@@H]1CC[C@@H]2O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.