Using O=C(O)c1ccccc1Nc1nc(Cl)ncc1[N+](=O)[O-], COc1cc(N)cc(OC)c1OC to produce COc1cc(Nc2ncc([N+](=O)[O-])c(Nc3ccccc3C(=O)O)n2)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.