Using CCN(CC)CCNC(=O)c1ccc(NC(=O)COCc2ccccc2)cc1OC to produce CCN(CC)CCNC(=O)c1ccc(NC(=O)CO)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.