Using COC(=O)c1ccc(CC(CO)CCc2ccc(C#N)cc2)cc1 to produce COC(=O)c1ccc(CC(C=O)CCc2ccc(C#N)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.