tert-Butyl-[(4S,5S)-5-((E)-2-iodo-vinyl)-2,2-dimethyl-[1,3]dioxolan-4-ylmethoxy]-dimethyl-silane

2-[(E)-4-((4S,5R)-5-Formyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-but-3-en-1-ynyl]-oxazole-4-carboxylic acid ethyl ester

2-{(E)-4-[(4S,5S)-5-(tert-Butyl-dimethyl-silanyloxymethyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-but-3-en-1-ynyl}-oxazole-4-carboxylic acid ethyl ester

2-[(E)-4-((4S,5S)-5-Hydroxymethyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-but-3-en-1-ynyl]-oxazole-4-carboxylic acid ethyl ester