Using Oc1ccccc1F, CCOC(=O)Cc1cccc(Cl)c1[N+](=O)[O-] to produce O=C(O)Cc1cccc(Oc2ccccc2F)c1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.