Using COC[P+](c1ccccc1)(c1ccccc1)c1ccccc1, O=CC1(c2cc(F)cc(F)c2)CC1 to produce O=CCC1(c2cc(F)cc(F)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.