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

(2R,3R,5S)-2-[(R)-2-(2-But-3-enyl-[1,3]dioxolan-2-yl)-propyl]-5-hydroxymethyl-tetrahydro-furan-3-ol

(2R,3R,5S)-2-[(R)-2-(2-But-3-enyl-[1,3]dioxolan-2-yl)-propyl]-5-(tert-butyl-diphenyl-silanyloxymethyl)-tetrahydro-furan-3-ol

3-(2-{(R)-2-[(2R,3R,5S)-5-(tert-Butyl-diphenyl-silanyloxymethyl)-3-triethylsilanyloxy-tetrahydro-furan-2-yl]-1-methyl-ethyl}-[1,3]dioxolan-2-yl)-1-{2-[2-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-ethyl]-[1,3]dithian-2-yl}-propan-1-ol