Using CCOC(=O)C1(C(=O)C(C)N(Cc2ccccc2)Cc2ccccc2)CC1 to produce CCOC(=O)C1(C(O)C(C)N(Cc2ccccc2)Cc2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.