Using COC(=O)CC#N, CC(Br)C(=O)c1ccccc1C(F)(F)F to produce COC(=O)C(C#N)C(C)C(=O)c1ccccc1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.