Using O=S(=O)(c1ccccc1)C1CCN(c2ccc(C(O)(C(F)(F)F)C(F)(F)F)cc2)CC1, BrBr to produce O=S(=O)(c1ccccc1)C1CCN(c2ccc(C(O)(C(F)(F)F)C(F)(F)F)cc2Br)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.