Using [N-]=[N+]=[N-], CCc1ccc(-c2nc3ccc(C#N)cc3nc2-c2ccc(CC)cc2)cc1 to produce CCc1ccc(-c2nc3ccc(-c4nnn[nH]4)cc3nc2-c2ccc(CC)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.