Using C#Cc1ccc2nc(C(=O)Nc3ccccc3)cn2c1, [N-]=[N+]=[N-] to produce O=C(Nc1ccccc1)c1cn2cc(-c3c[nH]nn3)ccc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.