Using O=C(Cl)c1ccc(F)cc1, Nc1cccc([N+](=O)[O-])c1 to produce O=C(Nc1cccc([N+](=O)[O-])c1)c1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.