Using CCOC(=O)c1ccc(-c2c(C(F)F)oc3cc(O)ccc3c2=O)cc1 to produce O=C(O)c1ccc(-c2c(C(F)F)oc3cc(O)ccc3c2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.