Using COc1ccc(Cl)c(-n2cc(C(=O)O)c(-c3ccc([N+](=O)[O-])cc3[N+](=O)[O-])n2)c1 to produce COc1ccc(Cl)c(-n2cc3c(=O)[nH]c4cc(N)ccc4c3n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.