Using COC(=O)c1ccc(F)c(-c2c(F)cc(SC)cc2F)n1, O=S(=O)([O-])O[O-] to produce COC(=O)c1ccc(F)c(-c2c(F)cc(S(C)=O)cc2F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.