(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

(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