4-azido-2,3,5-tri-O-benzyl-4-deoxy-L-arabinose

1,1,3,3-tetramethylbutyl 3,4,6-tri-O-benzyl-2,5-dideoxy-2,5-(pent-4-enimido)-L-gulo-hexonamide

1,1,3,3-tetramethylbutyl 3,4,6-tri-O-benzyl-2,5-dideoxy-2,5-imino-L-gulohexonamide