Using COC(=O)Cc1c(C)[nH]c2nc(Cl)ccc12, CS(=O)(=O)c1ccc(CBr)cc1 to produce Cc1c(CC(=O)O)c2ccc(Cl)nc2n1Cc1ccc(S(C)(=O)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.