Using COc1cc(C(=O)c2nc(Br)c3ccccn23)ccc1[N+](=O)[O-], COc1ccc(B(O)O)cc1 to produce COc1ccc(-c2nc(C(=O)c3ccc([N+](=O)[O-])c(OC)c3)n3ccccc23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.