(4S,5S)-5-[2-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2,2-dimethyl-[1,3]dioxolane-4-carbaldehyde

2-[(2S,5R,6R,8R,10R)-10-(tert-Butyl-dimethyl-silanyloxymethyl)-5-methyl-5-triethylsilanyloxy-1,7,9-trioxa-dispiro[5.1.5.2]pentadec-2-yl]-ethanol

2,2-Dimethyl-propionic acid (2R,3R)-3-(tert-butyl-dimethyl-silanyloxy)-3-{(4S,5S)-5-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-2-methyl-propyl ester

(4S,5S)-4-[(E)-(S)-4,5-Bis-(tert-butyl-dimethyl-silanyloxy)-3-methylene-pent-1-enyl]-5-[(1R,2S)-1-(tert-butyl-dimethyl-silanyloxy)-3-iodo-2-methyl-propyl]-2-methoxy-[1,3]dioxolane

2,2-Dimethyl-propionic acid (2R,3R)-3-{(4S,5S)-5-[(E)-(S)-4,5-bis-(tert-butyl-dimethyl-silanyloxy)-3-methylene-pent-1-enyl]-2-methoxy-[1,3]dioxolan-4-yl}-3-(tert-butyl-dimethyl-silanyloxy)-2-methyl-propyl ester

(2S,5R,6R,8R,10R)-10-[1,3]Dithian-2-ylmethyl-5-methyl-2-(2-methylene-6-trimethylsilanyloxy-hexyl)-5-triethylsilanyloxy-1,7,9-trioxa-dispiro[5.1.5.2]pentadecane

2,2-Dimethyl-propionic acid (2R,3R)-3-(tert-butyl-dimethyl-silanyloxy)-3-{(4S,5S)-5-[(E)-(S)-3-(1,4-dioxa-spiro[4.4]non-2-yl)-buta-1,3-dienyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-2-methyl-propyl ester

{(2R,6R,8R,10S,13R)-10-[6-(4-Methoxy-benzyloxy)-2-methylene-hexyl]-13-methyl-13-triethylsilanyloxy-1,7,9-trioxa-dispiro[5.1.5.2]pentadec-2-yl}-methanol

{(4R,5S)-5-[2-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-methanol