(S)-3-(tert-Butyl-dimethyl-silanyloxy)-3-((4R,5R)-2,2-dimethyl-4-pentyl-[1,3]dioxan-5-yl)-propionaldehyde

{(4R,6S)-6-[(S)-2-(tert-Butyl-dimethyl-silanyloxy)-2-((4R,5R)-2,2-dimethyl-4-pentyl-[1,3]dioxan-5-yl)-ethyl]-2,2-dimethyl-[1,3]dioxan-4-yl}-acetaldehyde

(3R,5S,7S)-7-(tert-Butyl-dimethyl-silanyloxy)-7-((4R,5R)-2,2-dimethyl-4-pentyl-[1,3]dioxan-5-yl)-3,5-dihydroxy-heptanoic acid methyl ester

(5R,7S)-7-(tert-Butyl-dimethyl-silanyloxy)-7-((4R,5R)-2,2-dimethyl-4-pentyl-[1,3]dioxan-5-yl)-5-hydroxy-3-oxo-heptanoic acid methyl ester

{(4R,6S)-6-[(S)-2-(tert-Butyl-dimethyl-silanyloxy)-2-((4R,5R)-2,2-dimethyl-4-pentyl-[1,3]dioxan-5-yl)-ethyl]-2,2-dimethyl-[1,3]dioxan-4-yl}-acetic acid methyl ester