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