Using CC(C)(C)OC(=O)N1CCSC(c2ccc(Br)cc2)C1, O=S([O-])([O-])=S to produce CC(C)(C)OC(=O)N1CCS(=O)(=O)C(c2ccc(Br)cc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.