Using CCC(CC(O)(CO)C(F)(F)F)c1ccc(Cl)c(C)c1OC to produce CCC(CC(O)(C=O)C(F)(F)F)c1ccc(Cl)c(C)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.