[(4aR,6S,7R,8R,8aS)-7-azido-8-decoxy-2,2-dimethyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy-tert-butyl-dimethylsilane;(2R,3S,4R,5R,6S)-5-azido-6-[tert-butyl(dimethyl)silyl]oxy-2-[[tert-butyl(dimethyl)silyl]oxymethyl]-4-decoxyoxan-3-ol;(2R,3S,4R,5R,6S)-5-azido-6-[tert-butyl(dimethyl)silyl]oxy-4-decoxy-2-(hydroxymethyl)oxan-3-ol;[(2S,3S,4S,5R,6S)-5-azido-6-[tert-butyl(dimethyl)silyl]oxy-4-decoxy-3-methyloxan-2-yl]methanol;[(2S,3S,4S,5R,6S)-5-azido-6-[tert-butyl(dimethyl)silyl]oxy-4-decoxy-3-methyloxan-2-yl]methoxy-tert-butyl-dimethylsilane