Using CC(=O)N(CCc1ccc2c(c1)C(=O)c1ccccc1CO2)OCc1ccccc1 to produce CC(=O)N(O)CCc1ccc2c(c1)C(=O)c1ccccc1CO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.