(5S,5aS,7S,8aR)-7-(tert-Butyl-dimethyl-silanyloxy)-5-methoxymethoxy-1,4,5,5a,6,7,8,8a-octahydro-2H-as-indacen-3-one

(2S,3aS,4S,5aR,6R,7R,8aS,8bS)-2-(tert-Butyl-dimethyl-silanyloxy)-7-(tert-butyl-diphenyl-silanyloxy)-6-[2-(4-methoxy-benzyloxy)-ethyl]-dodecahydro-as-indacen-4-ol

2,2-Dimethyl-propionic acid (2R,3aS,5aR,6R,7R,8aS,8bR)-7-hydroxy-6-[2-(4-methoxy-benzyloxy)-ethyl]-1,2,3,3a,5a,6,7,8,8a,8b-decahydro-as-indacen-2-yl ester

(2S,3aR,5aR,6R,7R,8aR,8bS)-2-(tert-Butyl-dimethyl-silanyloxy)-7-(tert-butyl-diphenyl-silanyloxy)-6-[2-(4-methoxy-benzyloxy)-ethyl]-decahydro-as-indacen-4-one

2,2-Dimethyl-propionic acid (2R,3aS,5aR,6R,8aS,8bR)-6-[2-(4-methoxy-benzyloxy)-ethyl]-7-oxo-1,2,3,3a,5a,6,7,8,8a,8b-decahydro-as-indacen-2-yl ester

tert-Butyl-{(2S,3aS,4S,5aR,8aS,8bS)-6-[2-(4-methoxy-benzyloxy)-ethyl]-4-methoxymethoxy-1,2,3,3a,4,5,5a,8,8a,8b-decahydro-as-indacen-2-yloxy}-dimethyl-silane

2,2-Dimethyl-propionic acid (2R,3aS,5aR,6R,7R,8aS,8bR)-7-(tert-butyl-diphenyl-silanyloxy)-6-[2-(4-methoxy-benzyloxy)-ethyl]-1,2,3,3a,5a,6,7,8,8a,8b-decahydro-as-indacen-2-yl ester