Using C[O-], CCOC(=O)c1cc(-c2ccccn2)n(-c2ccc(Cl)nn2)n1 to produce COC(=O)c1cc(-c2ccccn2)n(-c2ccc(OC)nn2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.