(-)-(2R,3R,5R,6R)-3-tert-butyldimethylsilyloxymethyl-5,6-dimethoxy-5,6-dimethyl-1,4-dioxane-2-carbaldehyde

(2S,5S)-2-(hydroxymethyl)-5-(1-benzyloxyprop-2-ynyl)tetrahydrofuran

(2R/S,5S)-5-(tert-butyldiphenylsilyloxymethyl)-2-(prop-2-yne-1-oxy)tetrahydrofuran

(2S,3S,5R,6R)-3-Dodecyl-5,6-dimethoxy-5,6-dimethyl-[1,4]dioxane-2-carbaldehyde

(2S,3R,5R,6R)-5,6-dimethoxy-5,6-dimethyl-3-hydroxymethyl-2-dodecane-[1,4]-dioxane