Using Cn1cnc(-c2nnc3c4cc(-c5ccccc5)c(-c5ccc(C6OCCO6)cc5)nc4ccn23)c1 to produce Cn1cnc(-c2nnc3c4cc(-c5ccccc5)c(-c5ccc(C=O)cc5)nc4ccn23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.