Using COC[P+](c1ccccc1)(c1ccccc1)c1ccccc1, O=C(c1ccc(C(F)(F)F)cc1)C(F)(F)F to produce COC=C(c1ccc(C(F)(F)F)cc1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.