(2R,4S,5R,E)-4-(3-butenone-1-yl)-5-hydroxy-2-methyl-1,3-dioxane

(E)-4-((2R,4S,5R)-5-Methoxymethoxy-2-methyl-[1,3]dioxan-4-yl)-but-3-en-2-one

tert-Butyl-[(E)-3-((2R,4S,5R)-5-methoxymethoxy-2-methyl-[1,3]dioxan-4-yl)-1-methylene-allyloxy]-dimethyl-silane

(2S,6R)-4-(tert-Butyl-dimethyl-silanyloxy)-6-((2R,4S,5R)-5-methoxymethoxy-2-methyl-[1,3]dioxan-4-yl)-3,6-dihydro-2H-pyran-2-carboxylic acid ethyl ester

(2R,4S,5R,6R)-2-Acetoxy-5-azido-4-methoxymethoxy-6-((2R,4S,5R)-5-methoxymethoxy-2-methyl-[1,3]dioxan-4-yl)-tetrahydro-pyran-2-carboxylic acid ethyl ester