tert-Butyl-((S)-1-{(4R,5S)-5-[(Z)-9-(2-hexyl-5,5-dimethyl-[1,3]dioxan-2-yl)-non-2-enyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-2-trityloxy-ethoxy)-dimethyl-silane

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