Using CCCCCCC(OC(=O)c1ccc(OCc2ccccc2)cc1)C(F)(F)F to produce CCCCCCC(OC(=O)c1ccc(O)cc1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.