(E)-3-[(Z)-(2R,3S)-3-(tert-Butyl-diphenyl-silanyloxy)-10-oxo-3,4,7,8,9,10-hexahydro-2H-oxecin-2-yl]-propenal

methyl 3-O-acetyl-5-azido-2,5-dideoxy-β-D-erythro-pentofuranoside

Acetic acid (2R,3R)-2-acetoxymethyl-5-phenylselanyl-tetrahydro-furan-3-yl ester

(2R,3R,5S)-3-Allyl-2-(tert-butyl-dimethyl-silanyloxymethyl)-5-methoxy-tetrahydro-furan-3-ol

Methyl 2,3-dideoxy-3-C-methylene-5-O-(4-phenylbenzoyl)-α-D-glycero-pentofuranoside