(2R,3R,4R,5R)-N-butyloxycarbonyl-2-(azidomethyl)-3,4-bis(benzyloxy)-5-<(benzyloxy)methyl>pyrrolidine

(2R,3R,4R,5R)-3,4-Bis-benzyloxy-2-benzyloxymethyl-5-methanesulfonyloxymethyl-pyrrolidine-1-carboxylic acid tert-butyl ester

(1'R,2R,3R,4R,5R)-N-butyloxycarbonyl-3,4-bis(benzyloxy)-5-<(benzyloxy)methyl>-2-<2-azido-1-hydroxyethyl>pyrrolidine

(1'R,2R,3R,4R,5R)-N-butyloxycarbonyl-2-<2-azido-1-(benzyloxy)ethyl>-3,4-bis(benzyloxy)-5-<(benzyloxy)methyl>pyrrolidine

(2R,3R,4R,5R)-3,4-Bis-benzyloxy-2-benzyloxymethyl-5-[(S)-1-hydroxy-2-(toluene-4-sulfonyloxy)-ethyl]-pyrrolidine-1-carboxylic acid tert-butyl ester