Using FC(F)(F)c1ccccc1CBr, CC(=O)N1CCN(c2ccc(S(=O)(=O)NCC(C)C)cc2)CC1 to produce CC(=O)N1CCN(c2ccc(S(=O)(=O)N(Cc3ccccc3C(F)(F)F)CC(C)C)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.