Using CS(=O)(=O)Cl, CC(C)(C)OC1OC(=O)CC(C)(C)C1O to produce CC(C)(C)OC1OC(=O)CC(C)(C)C1OS(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.