8-(tert-butyl-diphenyl-silanyloxy)-6,6-diethyl-2,2-dimethyl-tetrahydro-benzo[1,2-d;4,5-d']bis[1,3]dioxole-3a-carboxylic acid methyl ester
(3aR,5R,6S,7S,7aR)-7-(tert-Butyl-diphenyl-silanyloxy)-2,2-diethyl-5,6-dihydroxy-hexahydro-benzo[1,3]dioxole-5-carboxylic acid methyl ester
[8-(tert-butyl-dimethyl-silanyloxy)-2,2,6,6-tetramethyl-tetrahydro-benzo[1,2-d;4,5-d']bis[1,3]dioxol-3a-yl]-diphenyl-methanol
(3aR,7S,7aR)-7-(tert-Butyl-diphenyl-silanyloxy)-2,2-diethyl-3a,4,7,7a-tetrahydro-benzo[1,3]dioxole-5-carboxylic acid methyl ester
(3aS,4R,4aS,7aR,8aR)-7a-(Hydroxy-diphenyl-methyl)-2,2,6,6-tetramethyl-hexahydro-benzo[1,2-d;4,5-d']bis[1,3]dioxol-4-ol