Using COC(=O)C(c1ccc(OCc2ccccc2)cc1)N1CC(NC(=O)Cc2ccccc2)C1=O to produce COC(=O)C(c1ccc(O)cc1)N1CC(NC(=O)Cc2ccccc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.