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