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