Using C[O-], O=C([O-])C1CC2(CCC1c1cc(F)c(F)cc1F)OCCO2 to produce COC(=O)[C@@H]1CC2(CC[C@H]1c1cc(F)c(F)cc1F)OCCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.