Using CS(=O)(=O)Cl, Cc1c(-c2cc3ccccc3o2)oc(=O)c(C)c1O to produce Cc1c(-c2cc3ccccc3o2)oc(=O)c(C)c1OS(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.