2-{(2S,3R)-3-[(S)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-oxiranyl}-ethanol

tert-Butyl-((S)-1-{(2R,3S)-3-[2-(4-methoxy-benzyloxy)-ethyl]-oxiranyl}-ethoxy)-dimethyl-silane

ethyl (2E,4S,5S)-4,5-dihydroxy-2-hexenoate