Using Nc1nccc(Cl)n1, O=C(O)c1n[nH]c2cc(Br)ccc12 to produce Nc1nccc(-n2nc(C(=O)O)c3ccc(Br)cc32)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.