(3aR,4aR,7aS,8R,8aS)-6,6-Diethyl-8-hydroxy-2,2-dimethyl-tetrahydro-benzo[1,2-d;4,5-d']bis[1,3]dioxole-3a-carboxylic acid methyl ester

2-[(3aR,4aR,7aR,8R,8aS)-8-(tert-Butyl-dimethyl-silanyloxy)-2,2,6,6-tetramethyl-tetrahydro-benzo[1,2-d;4,5-d']bis[1,3]dioxol-3a-yl]-propan-2-ol

(3aR,4aR,7aR,8aR)-6,6-Diethyl-7a-(1-hydroxy-1-methyl-ethyl)-2,2-dimethyl-tetrahydro-benzo[1,2-d;4,5-d']bis[1,3]dioxol-4-one

{(1R,2R,3S,5S)-3-(tert-Butyl-diphenyl-silanyloxy)-2-hydroxy-5-[2-methyl-2-((2S,3S,4R,5R,6S)-3,4,5-tris-benzyloxy-6-methyl-tetrahydro-pyran-2-yloxy)-propoxymethyl]-cyclohexyloxy}-acetic acid methyl ester

(3aR,4aR,7aR,8aR)-7a-(Hydroxy-diphenyl-methyl)-2,2,6,6-tetramethyl-tetrahydro-benzo[1,2-d;4,5-d']bis[1,3]dioxol-4-one