(4S)-4-(2'-iodo-allyl)-2,2-dimethyl-[1,3]-dioxane

4-((2R,4R,6R)-6-{(2R,6R)-6-[2-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4-methylene-tetrahydro-pyran-2-ylmethyl}-4-triisopropylsilanyloxy-tetrahydro-pyran-2-yl)-2-(4-methoxy-benzyloxymethyl)-oxazole

(4S,1'R)-4-(1'-hydroxybut-3'-enyl)-2,2-dimethyloxazolidine-3-carboxylic acid tert-butyl ester

(4S,1'R)-2,2-dimethyl-4-[3'-oxo-1'-(triethylsilanyloxy)-propyl]-oxazolidine-3-carboxylic acid tert-butyl ester

(4S,1'R)-2,2-dimethyl-4-[1'-(triethylsilanyloxy)-but-3'-enyl]-oxazolidine-3-carboxylic acid tert-butyl ester