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

(1R,4R,5S)-1-((4R,5S)-5-(2-((tert-butyldimethylsilyl)oxy)ethyl)-2,2-dimethyl-1,3-dioxolan-4-yl)-5-((tert-butyldiphenylsilyl)oxy)-4-(methoxymethoxy)hex-2-yn-1-ol

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

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

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

2,2-Dimethyl-propionic acid (E)-(2R,3R,4S,5S,9S)-9,10-diacetoxy-3-(tert-butyl-dimethyl-silanyloxy)-4,5-dihydroxy-2-methyl-8-methylene-dec-6-enyl ester

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

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

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

2,2-Dimethyl-propionic acid (2R,3R)-3-(tert-butyl-dimethyl-silanyloxy)-3-{(4S,5S)-5-[(E)-(R)-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

2,2-Dimethyl-propionic acid (2R,3R)-3-(tert-butyl-dimethyl-silanyloxy)-3-[(4S,5S)-5-((E)-(S)-4,5-diacetoxy-3-methylene-pent-1-enyl)-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

(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-propan-1-ol

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

2,2-Dimethyl-propionic acid (2R,3R)-3-{(4S,5S)-5-[(E)-(R)-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

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

2,2-Dimethyl-propionic acid (2R,3R)-3-[(4S,5S)-5-((S)-2-acetoxy-3-1,4-dioxa-spiro[4.4]non-2-yl-but-3-enyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-3-(tert-butyl-dimethyl-silanyloxy)-2-methyl-propyl ester