Using O=C(Nc1cnc2[nH]ccc2c1)c1cc([N+](=O)[O-])ccc1Cl to produce Nc1ccc(Cl)c(C(=O)Nc2cnc3[nH]ccc3c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.