Benzoic acid (E)-(S)-2-ethynyl-3-fluoro-2-hydroxy-5-oxo-pent-3-enyl ester

Benzoic acid (E)-(R)-2-ethynyl-3-fluoro-2-hydroxy-5-oxo-pent-3-enyl ester

(2S,5R)-1-O-benzoyl-5,6-dihydroxy-3E-fluoro-2-hydroxy-2-ethynyl-3-hexene

(2R,5R)-1-O-benzoyl-5,6-dihydroxy-3E-fluoro-2-hydroxy-2-ethynyl-3-hexene

Benzoic acid (E)-(S)-5,6-bis-(tert-butyl-dimethyl-silanyloxy)-3-fluoro-2-oxo-hex-3-enyl ester