Using O=C(Cl)Cl, Nc1cccc([N+](=O)[O-])c1C(=O)O to produce O=c1[nH]c2cccc([N+](=O)[O-])c2c(=O)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.