Using FC(F)(F)c1cc(C2CO2)cc(C(F)(F)F)c1, OCc1ccccc1 to produce OC(COCc1ccccc1)c1cc(C(F)(F)F)cc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.