Using FC(F)(F)c1ccc(Br)cn1, O=Cc1ccc2cccnc2c1[N+](=O)[O-] to produce O=[N+]([O-])c1c(C(O)c2ccc(C(F)(F)F)nc2)ccc2cccnc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.