[N-(benzyloxycarbonyl)aminopropyl (2-acetamido-3,4-di-O-benzyl-2-deoxy-β-D-mannopyranosidyl)]methyl C-(2-acetamido-6-O-acetyl-3,4-di-O-benzyl-2-deoxy-α-D-mannopyranosyl)methanephosphonate

[N-(benzyloxycarbonyl)aminopropyl (2-acetamido-3,4-di-O-benzyl-2-deoxy-β-D-mannopyranosidyl)]methyl C-(2-acetamido-3,4,6-tri-O-benzyl-2-deoxy-α-D-mannopyranosyl)methanephosphonate