Using Cc1nnc2c3cc(-c4ccccc4)c(-c4ccc(C=O)cc4)nc3ccn12 to produce Cc1nnc2c3cc(-c4ccccc4)c(-c4ccc(CO)cc4)nc3ccn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.