Using CCB(CC)c1cccnc1, Nc1cc(Br)cc(-n2cccn2)c1[N+](=O)[O-] to produce Nc1cc(-c2cccnc2)cc(-n2cccn2)c1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.