(2R,3R)-2,3,4-tris(phenylmethoxy)butanal

4,5,6-tri-O-benzyl-2,3-dideoxy-3-{[(dibenzyloxyphosphoryl)methyl]amino}-2-(trifluoroacetamido)-D-mannono-1,3-lactam

2,3,4-tri-O-benzyl-1-deoxy-1-[(E)-(4-methoxyphenyl)imino]-D-erythritol

4,5,6-tri-O-benzyl-2,3-dideoxy-3-[(4-methoxyphenyl)amino]-2-(trifluoroacetamido)-D-mannono-1,3-lactam

4,5,6-tri-O-benzyl-3-{[(benzyloxycarbonyl)methyl]amido}-2,3-dideoxy-2-(trifluoroacetamido)-D-mannono-1,3-lactam