(3R,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)-3-methyldihydrofuran-2(3H)-one can be used for synthetic preparation for asymmetric synthesis of dibenzoyl fluoro methyl-D-ribono-γ-lactone via asymmetric aldol condensation and enzymic hydrolysis from isopropylidene-D-glyceraldehyde and Et fluoropropionate.