Using CC(O)(C(F)(F)F)C(F)(F)F, O=Cc1ccc(C(=O)O)cc1 to produce CC(OC(=O)c1ccc(C=O)cc1)(C(F)(F)F)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.