Using Brc1cnc2[nH]ccc2c1, CCCS(=O)(=O)Nc1cccc(C(=O)Cl)c1 to produce CCCS(=O)(=O)Nc1cccc(C(=O)c2c[nH]c3ncc(Br)cc23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.