ethyl 2-((4aR,6S,7R,8aS)-2,2-di-tert-butyl-7-hydroxyhexahydropyrano[3,2-d][1,3,2]dioxasilin-6-yl)acetate

(4aR,6S,7R,8aS)-7-(benzyloxy)-6-(2-(benzyloxy)ethyl)-2,2-di-tert-butylhexahydropyrano[3,2-d][1,3,2]dioxasiline

(2R,3S,5R,6S)-5-Benzyloxy-6-(2-benzyloxy-ethyl)-2-hydroxymethyl-tetrahydro-pyran-3-ol