Using [Br-], CC(C)(C)OC(=O)N1CCC(COS(=O)(=O)C(F)(F)F)C1 to produce CC(C)(C)OC(=O)N1CCC(CBr)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.