Using O=c1[nH]c2cc(Cl)c([N+](=O)[O-])cc2c(=O)o1, [NH4+] to produce NC(=O)c1cc([N+](=O)[O-])c(Cl)cc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.