Using COC(=O)c1ccc(OCc2c(-c3ccccc3)noc2C=O)nc1 to produce COC(=O)c1ccc(OCc2c(-c3ccccc3)noc2CO)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.