Using O=[N+]([O-])c1cc(C(F)(F)F)c(Cl)c([N+](=O)[O-])c1Cl, Cc1nc(N)c(Cl)cc1Cl to produce Cc1nc(Nc2c([N+](=O)[O-])cc(C(F)(F)F)c(Cl)c2[N+](=O)[O-])c(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.