Toluene-4-sulfonic acid 2-((2S,3R,4aS,8aS,9aR,10aR)-3-hydroxy-2,4a,5,10a-tetramethyl-3,4,4a,7,8a,9,9a,10a-octahydro-2H-1,8,10-trioxa-anthracen-2-yl)-ethyl ester

[(2R,3S,4aR,6S,7R,8aS)-7-Benzyloxy-6-(2-benzyloxy-ethyl)-3-(tert-butyl-dimethyl-silanyloxy)-2,6,8a-trimethyl-octahydro-pyrano[3,2-b]pyran-2-yl]-methanol

(2S,3R,4aS,8aS,9aR,10aR)-2-(2-Hydroxy-ethyl)-2,4a,5,10a-tetramethyl-3,4,4a,7,8a,9,9a,10a-octahydro-2H-1,8,10-trioxa-anthracen-3-ol

(2S,3R,4aS,8aS,9aR,10aR)-3-Benzyloxy-2-(2-benzyloxy-ethyl)-2,4a,5,10a-tetramethyl-3,4,4a,7,8a,9,9a,10a-octahydro-2H-1,8,10-trioxa-anthracene