(2S,3S,4S,5S)-2-azido-5-[N-(tert-butyloxycarbonyl)amino]-3,4-dihydroxy-1,6-diphenylhexane

tert-butyl (1S,2R,4S)-4-amino-1-benzyl-2-hydroxy-5-phenylpentylcarbamate

(4S,5S)-4-benzyl-5-[(2S)-2-azido-3-phenylpropyl]-1,3-oxazolidin-2-one

(4S,5R)-4-benzyl-5-[(2R)-2-hydroxy-3-phenylpropyl]-1,3-oxazolidin-2-one