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