Using Brc1cnc2[nH]ccc2c1, CC(=O)Oc1cccc(C(=O)Cl)c1C to produce CC(=O)Oc1cccc(C(=O)c2c[nH]c3ncc(Br)cc23)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.