9-[7-benzyloxy-6-(2-benzyloxy-ethyl)-2,6,8a-trimethyl-2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy]-4,5a,10-trimethyl-8-vinyl-4a,5a,6,6a,8,9,10,11,11a,12a,13,13a-dodecahydro-2H-1,5,7,12-tetraoxa-cyclohepta[b]anthracene

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