(2S,3R)-4-Azido-3-hydroxy-2-methyl-butyric acid

(2R,3R)-2,4-bis((tert-butyldimethylsilyl)oxy)-3-methylbutan-1-ol

(5R,6R)-5-(azidomethyl)-2,2,3,3,6,9,9,10,10-nonamethyl-4,8-dioxa-3,9-disilaundecane