(3aR,6R,7R,7aR)-6-(4-(p-methoxybenzyloxy)but-2-ynyl)-7-(tert-butyldimethylsilyl)oxy-tetrahydro-2,2-dimethyl-3aH-[1,3]dioxolo[4,5-c]pyran

(3aR,6R,7R,7aS)-6-(4-(p-methoxybenzyloxy)but-2-ynyl)-tetrahydro-2,2-dimethyl-3aH-[1,3]dioxolo[4,5-c]pyran-7-ol

(3aR,6R,7S,7aS)-6-(4-(p-methoxybenzyloxy)but-2-ynyl)-tetrahydro-2,2-dimethyl-3aH-[1,3]dioxolo[4,5-c]pyran-7-ol

(2R,3S)-3-(tert-Butyl-dimethyl-silanyloxy)-2-(tert-butyl-dimethyl-silanyloxymethyl)-3,6-dihydro-2H-pyran