Using CC(=O)OC1CC[C@@]2(C)C(=CC[C@@H]3[C@@H]2CC[C@]2(C)C(=O)CC[C@@H]32)C1 to produce CC(=O)OC1CC[C@@]2(C)C(=CC[C@H]3[C@@H]4CC[C@H](O)[C@@]4(C)CC[C@@H]32)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.