3,4,5-Piperidinetriol, 2-(hydroxymethyl)-, hydrochloride, (2R,3S,4S,5R)-

1,3,4,5-tetra-O-acetyl-6-bromo-6-desoxy-D-arabino-hex-2-ulose

(2R,3R)-3-Acetoxy-2-benzyloxymethyl-4-oxo-3,4-dihydro-2H-pyridine-1-carboxylic acid benzyl ester

benzyl (2S,3R,4R,5R)-3,5-bis(benzyloxy)-2-formyl-4-hydroxypiperidine-1-carboxylate