3,4-di-O-benzyl-1,5-dideoxy-1,5-imino-D-mannitol

(6S,7R,8R,8aR)-7,8-Bis-benzyloxy-6-hydroxy-hexahydro-oxazolo[3,4-a]pyridin-3-one

2-azido-3,4-di-O-benzyl-1,2,5-trideoxy-1,5-imino-D-mannitol

(6R,7R,8R,8aR)-6-Azido-7,8-bis-benzyloxy-hexahydro-oxazolo[3,4-a]pyridin-3-one