Using CCOC(=O)c1ccc2c(c1)OC(c1cc(F)cc(F)c1)(c1cc(F)cc(F)c1)O2 to produce O=C(O)c1ccc2c(c1)OC(c1cc(F)cc(F)c1)(c1cc(F)cc(F)c1)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.