Using Nc1ccccc1N, O=C(O)c1cc(Br)ccc1-c1ccc(Br)cc1C(=O)O to produce Brc1ccc(-c2ccc(Br)cc2-c2nc3ccccc3[nH]2)c(-c2nc3ccccc3[nH]2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.