Using Nc1cc(=O)[nH]c(=S)n1Cc1nc2ccccc2[nH]1, O=N[O-] to produce Nc1c(N)n(Cc2nc3ccccc3[nH]2)c(=S)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.