Various types of 1-amino-1-deoxy-2-ketoses, Amadori rearrangement comp
ounds, have been synthesized using a reductive amination of the 1-form
yl derivative (3), prepared from 2,3:4,5-di-O-isopropylidene-D-fructop
yranose (2), with unprotected or partially protected amino acids in a
few steps.