Using O=c1[nH]c2cc(F)c([N+](=O)[O-])cc2[nH]c1=O, Oc1ccncc1F to produce O=c1ccn(-c2cc3[nH]c(=O)c(=O)[nH]c3cc2[N+](=O)[O-])cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.