Using CC(=O)c1cc(Br)c2c(c1O)CCN(C(=O)C(F)(F)F)CC2 to produce CC(=O)c1ccc2c(c1O)CCN(C(=O)C(F)(F)F)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.