{(2R,4S,5R)-5-[(1S,2R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-(tert-butyl-dimethyl-silanyloxymethyl)-but-3-enyloxy]-2-phenyl-[1,3]dioxan-4-yl}-methanol

(2R,4aR,6S,7R,9S,10aS)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-9-methyl-2-phenyl-octahydro-1,3,5-trioxa-benzocycloocten-7-ol

{(2R,4S,5R)-5-[(1S,2R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-(tert-butyl-dimethyl-silanyloxymethyl)-pent-4-enyloxy]-2-phenyl-[1,3]dioxan-4-yl}-acetaldehyde