3-(4-benzyloxy-3-hydroxy-3,4,4a,6,9,9a-hexahydro-2H-1,5-dioxa-benzocyclohepten-2-yl)-2-[6-(tert-butyl-diphenyl-silanyloxy)-7-(tert-butyl-diphenyl-silanyloxymethyl)-2-vinyl-oxepan-3-yloxy]-propionic acid tert-butyl ester

3-[4-benzyloxy-3-(4-methoxy-benzyloxy)-3,4,4a,6,9,9a-hexahydro-2H-1,5-dioxa-benzocyclohepten-2-yl]-2-[6-(tert-butyl-diphenyl-silanyloxy)-7-(tert-butyl-diphenyl-silanyloxymethyl)-2-vinyl-oxepan-3-yloxy]-propionic acid tert-butyl ester

(2S,3S,4R,4aR,10aR)-2-Allyl-3-allyloxy-4-benzyloxy-6,6,8,8-tetraisopropyl-hexahydro-1,5,7,9-tetraoxa-6,8-disila-benzocyclooctene