(2S,4aS,8aR)-5,5'-ethylene-bis[2-(tert-butyldimethylsilyloxy)-1,1,4a,6-tetramethyl-1,2,3,4,4a,7,8,8a-octahydronaphthalene]

((2S,4aS,5S,8aR)-decahydro-2-hydroxy-1,1,4a-trimethyl-6-methylenenaphthalen-5-yl)methyl acetate

(4aR,6S,8aS)-6-((tert-butyldimethylsilyl)oxy)-2,5,5,8a-tetramethyl-3,4,4a,5,6,7,8,8a-octahydronaphthalene-1-carbaldehyde

(1S,4aR,6S,8aS)-6-(tert-Butyl-dimethyl-silanyloxy)-5,5,8a-trimethyl-2-methylene-decahydro-naphthalene-1-carbaldehyde

((2S,4aS,8aR)-5-Bromomethyl-1,1,4a,6-tetramethyl-1,2,3,4,4a,7,8,8a-octahydro-naphthalen-2-yloxy)-tert-butyl-dimethyl-silane