Using COC(=O)CCC(=O)[O-], O=C(CBr)c1cc(Cl)cc(C(F)(F)F)c1 to produce COC(=O)CCC(=O)OCC(=O)c1cc(Cl)cc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.