(2R,3R,5S)-5-(tert-Butyl-diphenyl-silanyloxymethyl)-2-((R)-2-methyl-3-triethylsilanyloxy-propyl)-3-triethylsilanyloxy-tetrahydro-furan

(R)-1-[(2R,3R,5S)-5-(tert-Butyl-diphenyl-silanyloxymethyl)-3-triethylsilanyloxy-tetrahydro-furan-2-yl]-5-{2-[(Z)-3-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-allyl]-[1,3]dioxolan-2-yl}-2-methyl-pentan-3-one

(R)-3-[(2R,3R,5S)-5-(tert-Butyl-diphenyl-silanyloxymethyl)-3-triethylsilanyloxy-tetrahydro-furan-2-yl]-2-methyl-propionaldehyde