(3S,4S)-N-benzyloxycarbonyl-3-hydroxy-4-((S)-1,2-dihydroxyethyl)piperidine

(3R,4S,5R)-5-Benzyloxymethyl-4-fluoro-3-hydroxy-dihydro-furan-2-one

((3aS,5R,6R,6aR)-6-Fluoro-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-yl)-methanol

(3S,4S,5S)-4-Azido-5-(tert-butyl-diphenyl-silanyloxymethyl)-3-hydroxy-dihydro-furan-2-one

5-t-butyldiphenylsilyloxymethyl-6'-methoxy-2,2-dimethyl-(3'S,3aS,5R,6S,6'R,6aS)-spiro[perhydrofuro[2,3-d][1,3]dioxole-6,2'-(3'H,6'H-pyran)]-3'-yl acetate