Using CS(=O)(=O)Cl, COc1ccc(COc2ccc(C(=O)[C@@H](C)O)cc2)cc1 to produce COc1ccc(COc2ccc(C(=O)[C@@H](C)OS(C)(=O)=O)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.