Using CCOC(=O)CCC(=O)c1cnc2c(OC)cccc2c1Nc1ccccc1C to produce CCOC(=O)CCC(O)c1cnc2c(OC)cccc2c1Nc1ccccc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.