Using CCOC(=O)C(C(=O)OCC)(C(=O)OCC)C1CCOc2cc(S(=O)(=O)c3cccc(F)c3)ccc21 to produce O=C(O)C(C(=O)O)(C(=O)O)C1CCOc2cc(S(=O)(=O)c3cccc(F)c3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.