1,6-anhydro-2,3-dideoxy-β-D-erythro-hex-2-enopyranose

(-)-(2S,3R,4R)-2-Bromomethyl-4-(t-butyldimethylsilyloxy)-tetrahydropyran-3-yl Benzoate

2,3,5-tri-O-acetyl-D-erythro-4-pentulosonic acid methyl ester

1,6-anhydro-4-O-acetyl-2,3-dideoxy-β-D-erythro-hex-2-enopyranose

tri-O-acetyl-4-deoxy-α-L-threo-pentopyranose