Using O=C(O)c1cn(-c2ccc(F)cc2)c(-c2ccc(O)c([N+](=O)[O-])c2)cc1=O to produce Nc1cc(-c2cc(=O)c(C(=O)O)cn2-c2ccc(F)cc2)ccc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.