Using O=C(Cl)C(Cl)(Cl)Cl, O=C(NCC(F)(F)F)c1ccccc1Nc1cccc([N+](=O)[O-])c1 to produce O=c1c2ccccc2n(-c2cccc([N+](=O)[O-])c2)c(=O)n1CC(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.