Using Cc1ccc(S(=O)(=O)NNC2=CC(=O)CC(c3ccccc3Cl)C2)cc1, CCC(=O)CBr to produce CCc1cnnc2c1C(=O)CC(c1ccccc1Cl)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.