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

Acetic acid (3aS,4aR,7aS,8R,8aS)-6,6-diethyl-8-hydroxy-2,2-dimethyl-tetrahydro-benzo[1,2-d;4,5-d']bis[1,3]dioxol-3a-ylmethyl 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

(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

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