Using [Li]CCCC, O=Cc1ccc(Oc2cccc(C(F)(F)F)n2)c(F)c1 to produce C=Cc1ccc(Oc2cccc(C(F)(F)F)n2)c(F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.