Using O=N[O-], Cn1cc(-c2cc(O)c(N)c(NCc3ccc4ncccc4c3)n2)cn1 to produce Cn1cc(-c2cc(O)c3nnn(Cc4ccc5ncccc5c4)c3n2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.