tert-butyl 4-hydroxy-3-(hydroxymethyl)but-2-enoate

(1R,5S)-methyl 2-oxo-3-oxabicyclo[3.1.0]hexane-1-carboxylate

(R)-(+)-3-hydroxymethyl-4-butanolide

3-tert-butoxymethyl-4-fluoro-3-hydroxybutyric acid tert-butyl ester

4-fluoromethyl-4-hydroxy-dihydro-furan-2-one