Using O=C(Oc1cc([N+](=O)[O-])c(F)cc1Cl)Oc1cc([N+](=O)[O-])c(F)cc1Cl to produce Nc1cc(OC(=O)Oc2cc(N)c(F)cc2Cl)c(Cl)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.