Using CCOc1ccc2ccccc2c1Cc1c(CC)nn(-c2c(C)cc(C=O)cc2C)c1CC to produce CCOc1ccc2ccccc2c1Cc1c(CC)nn(-c2c(C)cc(CO)cc2C)c1CC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.