{(4R,6R)-6-[(4S,6S)-6-((4R,6R)-6-Hydroxymethyl-2,2-dimethyl-[1,3]dioxan-4-ylmethyl)-2,2-dimethyl-[1,3]dioxan-4-ylmethyl]-2,2-dimethyl-[1,3]dioxan-4-yl}-methanol

(4R,6R)-6-[(4S,6S)-6-((4R,6R)-6-{(4R,5S,6S)-6-[2-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2,2,5-trimethyl-[1,3]dioxan-4-ylmethyl}-2,2-dimethyl-[1,3]dioxan-4-ylmethyl)-2,2-dimethyl-[1,3]dioxan-4-ylmethyl]-2,2-dimethyl-[1,3]dioxane-4-carbaldehyde