Using C=C(OCC)c1cc2c(cn1)OCCn1cc(-c3nc(C)nn3C(C)C)nc1-2 to produce CC(=O)c1cc2c(cn1)OCCn1cc(-c3nc(C)nn3C(C)C)nc1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.