Using COC(=O)COc1cccc(Nc2ncnc3oc(-c4ccccc4)c(-c4ccccc4)c23)c1 to produce O=C(O)COc1cccc(Nc2ncnc3oc(-c4ccccc4)c(-c4ccccc4)c23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.