Using FC(F)(F)c1ccc(CBr)cc1, CCOC(=O)CC(=O)c1ccccc1F to produce CCOC(=O)C(Cc1ccc(C(F)(F)F)cc1)C(=O)c1ccccc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.