Using COC(=O)c1ccccc1CN1C(=O)C(c2cc3c(cc2O)OCO3)c2ccccc21, C=O to produce COC(=O)c1ccccc1CN1C(=O)C(CO)(c2cc3c(cc2O)OCO3)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.