Using COC(=O)c1cc(C#N)cc(OCc2ccccc2)c1, [N-]=[N+]=[N-] to produce COC(=O)c1cc(OCc2ccccc2)cc(-c2nnn[nH]2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.