Using COC(=O)c1cccc(N)c1N, O=C(O)c1n[nH]c2ncc(Br)cc12 to produce COC(=O)c1cccc(NC(=O)c2n[nH]c3ncc(Br)cc23)c1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.