Using O=C(O)C(F)(F)F, CC(=O)Oc1c(C)cc(O)cc1C(C)(C)C to produce CC(=O)Oc1c(C(C)(C)C)cc(O)c(C=O)c1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.