Using CC1(C)OB(c2cc([N+](=O)[O-])ccc2F)OC1(C)C, Fc1c(Br)nc(Br)c(F)c1Br to produce O=[N+]([O-])c1ccc(F)c(-c2nc(Br)c(F)c(Br)c2F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.