(2S,3R,4aS,6R,7S,8aR)-3-(tert-Butyl-dimethyl-silanyloxy)-2-[(R)-3-(tert-butyl-dimethyl-silanyloxy)-2-methyl-propyl]-6-isopropenyl-7-(4-methoxy-benzyloxy)-4a-methyl-octahydro-pyrano[3,2-b]pyran

2-{3-[7-benzyloxy-6-(2-benzyloxy-ethyl)-2,6,8a-trimethyl-2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy]-2-methyl-3-phenylsulfanyl-propyl}-4a,5-dimethyl-3,4,4a,7,8a,9,9a,10a-octahydro-2H-1,8,10-trioxa-anthracen-3-ol