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

(3R)-2',2'-dimethyl-propionic acid 3-hydroxy-hex-5-ynyl 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

(4S,1'R,3'S)-2,2-dimethyl-4-[5'-oxo-1'-(triethylsilanyloxy)-3'-(triisopropylsilanyloxy)-pentyl]-oxazolidine-3-carboxylic acid tert-butyl ester