Using CS(=O)(=O)Cl, Cc1c[nH]c2c1C(=O)CC(c1ccccc1)C2 to produce Cc1cn(S(C)(=O)=O)c2c1C(=O)CC(c1ccccc1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.