Using COc1cc2ccn(-c3ccc([N+](=O)[O-])cc3)c(=O)c2cc1F to produce O=c1c2cc(F)c(O)cc2ccn1-c1ccc([N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.