Using N#Cc1cc(Br)cc(Oc2c(Cl)ccc(CBr)c2F)c1, [N-]=[N+]=[N-] to produce N#Cc1cc(Br)cc(Oc2c(Cl)ccc(CN=[N+]=[N-])c2F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.