N-tert-butyloxycarbonyl-1,5-dideoxy-1,5-imino-3,4-O-isopropylidene-D-erythro-pent-2-ulose

(3S,4S,5R)-3-(hydroxymethyl)piperidine-3,4,5-triol

(3S,4S,5R)-4,5-Bis-benzoyloxy-3-benzoyloxymethyl-3-hydroxy-piperidine-1-carboxylic acid tert-butyl ester

benzoyl 5-(N-benzyloxycarbonyl)amino-5-deoxy-2,3-O-isopropylidene-α-D-lyxofuranoside

(3R,5R)-3,4,5-Trihydroxy-piperidine-1-carboxylic acid benzyl ester