Benzoic acid (2S,3S)-3-azido-3-carboxy-2-methoxymethoxy-propyl ester

(2S,3S)-3-azido-4-(((2S,3R)-3-(benzoyloxy)-1-((tert-butyldiphenylsilyl)oxy)-4-oxobutan-2-yl)amino)-2-(methoxymethoxy)-4-oxobutyl benzoate

(2S,3S)-3-azido-4-(((2S,3R)-3-(benzoyloxy)-1-((tert-butyldiphenylsilyl)oxy)-4-hydroxybutan-2-yl)amino)-2-(methoxymethoxy)-4-oxobutyl benzoate

Benzoic acid (2S,3S)-3-azido-3-[(1S,2R)-1-(tert-butyl-diphenyl-silanyloxymethyl)-2-hydroxy-3-(4-methoxy-benzyloxy)-propylcarbamoyl]-2-methoxymethoxy-propyl ester