(5R,6R,7S,8R)-6,7-bis(benzyloxy)-5-[(benzyloxy)methyl]-5,6,7,8-tetrahydro-8-[(methylsulfonyl)oxy][1,2,4]triazolo[4,3-a]pyridine

2-O-acetyl-5-amino-3,4,6-tri-O-benzyl-5-deoxy-D-mannonolactam