Using O=C(NCCC(=O)C(C(=O)OCc1ccccc1)N1CCC1=O)OCc1ccccc1 to produce O=C(NCCC(O)C(C(=O)OCc1ccccc1)N1CCC1=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.