Using CCOC(=O)[C@@H]1CC(=O)C[C@H]1C(=O)NC1(C#N)CC1 to produce CCOC(=O)[C@@H]1CC(O)C[C@H]1C(=O)NC1(C#N)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.