(2S,5S)-1-((4S,6S)-6-(benzyloxymethyl)-2,2-dimethyl-1,3-dioxan-4-yl)-5-((2S,4S)-2-(4-methoxyphenyl)-1,3-dioxan-4-yl)-4-methylenehexan-2-ol

(R)-3-(tert-Butyl-dimethyl-silanyloxy)-4-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-butyraldehyde