(4S,6R)-4-(2-(tert-butyldimethylsilyloxy)-ethyl)-6-hydroxyethyl-2,2-dimethyl-1,3-dioxane

{(4S,6S)-6-[2-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2,2-dimethyl-[1,3]dioxan-4-yl}-acetic acid

tert-butyl (+)-(3R,4S)-3-tert-butyldimethylsilyloxy-4-hydroxy-4-(2-thiazolyl)-butanoate

(-)-(3S,5R)-7-acetoxy-1-(tert-butyldimethylsilyloxy)-3,5-isopropylidenedioxy-heptane

dimethyl (+)-(3S,5S)-1-(tert-butyldimethylsilyloxy)-3,5-isopropylidenedioxy-7-oxo-octyl-8-phosphonate