Using O=C(c1ccncc1)C(c1ccc(F)cc1)c1ncccc1[N+](=O)[O-] to produce On1c(-c2ccncc2)c(-c2ccc(F)cc2)c2ncccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.