Using CCOC(=O)c1cc(CBr)nc(C(F)(F)F)n1, O=C([O-])[O-] to produce COCc1cc(C(=O)O)nc(C(F)(F)F)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.