Using CCCCC(CCOS(=O)(=O)c1ccc(C)cc1)C(F)(F)F, CCOC(=O)c1ccc(O)cc1 to produce CCCCC(CCOc1ccc(C(=O)OCC)cc1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.