(S)-4,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methylene-pentanal

(S)-4-Benzyl-3-{3-[(2R,6R)-6-(2-methoxymethoxy-ethyl)-3,6-dihydro-2H-pyran-2-yl]-propionyl}-oxazolidin-2-one

(2R,6R)-2-[(2S,6S)-6,7-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methyl-4-methylene-heptyl]-6-(2-methoxymethoxy-ethyl)-3,6-dihydro-2H-pyran

(S)-4-Benzyl-3-{3-[(2R,4S,5S,6R)-4,5-dihydroxy-6-(2-methoxymethoxy-ethyl)-tetrahydro-pyran-2-yl]-propionyl}-oxazolidin-2-one

(S)-4-Benzyl-3-{3-[(3aR,4R,6R,7aS)-4-(2-methoxymethoxy-ethyl)-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-6-yl]-propionyl}-oxazolidin-2-one