(5S,6S,7R,8R)-5-(tert-Butyl-dimethyl-silanyloxy)-8-[4-(tert-butyl-dimethyl-silanyloxy)-3,5-dimethoxy-phenyl]-7-(2,2-dimethyl-propionyloxymethyl)-5,6,7,8-tetrahydro-naphtho[2,3-d][1,3]dioxole-6-carboxylic acid

Carbonic acid benzyl ester 4-[(5R,5aR,8aS,9S)-9-((2R,4aR,6R,7R,8R,8aS)-7,8-dihydroxy-2-methyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-8-oxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl]-2,6-dimethoxy-phenyl ester

(5S,5aS,8aR,9R)-5-(tert-Butyl-dimethyl-silanyloxy)-9-[4-(tert-butyl-dimethyl-silanyloxy)-3,5-dimethoxy-phenyl]-5,8,8a,9-tetrahydro-5aH-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6-one