Using CS(=O)(=O)Cl, CC(C)c1ccc(N2CC(CO)CC2=O)cc1 to produce CC(C)c1ccc(N2CC(COS(C)(=O)=O)CC2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.