Using Cc1cc(-c2nc3cnc(Cl)nc3o2)cc(C)c1OC1CC(C(=O)OCc2ccccc2)C1, CS(=O)[O-] to produce Cc1cc(-c2nc3cnc(S(C)(=O)=O)nc3o2)cc(C)c1OC1CC(C(=O)OCc2ccccc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.