Using O=S([O-])([O-])=S, CC(C)(C(=O)Nc1cc(F)ccc1F)N1CSC(c2ccccc2)C1=O to produce CC(C)(C(=O)Nc1cc(F)ccc1F)N1CS(=O)(=O)C(c2ccccc2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.