Using CSc1c(Cl)c(-c2cc(S(=O)(=O)Cl)c(Cl)cc2Cl)nn1C to produce CSc1c(Cl)c(-c2cc(S)c(Cl)cc2Cl)nn1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.