Benzoic acid (2S,3S)-3-azido-3-{[(1R,2R)-3-(tert-butyl-dimethyl-silanyloxy)-2-hydroxy-1-phenyl-propyl]-methyl-carbamoyl}-2-methoxymethoxy-propyl ester

Benzoic acid (2S,3S)-3-[((1R,2R)-2-acetoxy-3-oxo-1-phenyl-propyl)-methyl-carbamoyl]-3-azido-2-methoxymethoxy-propyl ester

(2S,5S,6S)-2-((S)-2-(benzoyloxy)-1-(methoxymethoxy)ethyl)-5-(((tert-butyldiphenylsilyl)oxy)methyl)-1-methyl-3-oxo-1,4-diazepan-6-yl benzoate

Benzoic acid (2S,3S)-3-[((1R,2R)-2-acetoxy-3-hydroxy-1-phenyl-propyl)-methyl-carbamoyl]-3-azido-2-methoxymethoxy-propyl ester

Benzoic acid (2S,3S)-3-azido-3-[((1R,2R)-2,3-dihydroxy-1-phenyl-propyl)-methyl-carbamoyl]-2-methoxymethoxy-propyl ester