Using COc1cnc2c(NCc3nnc4ccc(-c5ccccc5)nn34)ccnc2c1 to produce Oc1cnc2c(NCc3nnc4ccc(-c5ccccc5)nn34)ccnc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.