(1S,4R,4aS,7R,8S,8aR)-7-Allyl-8-(tert-butyl-dimethyl-silanyloxy)-4,4a,6,7,8,8a-hexahydro-1H-1,4-methano-naphthalen-5-one

[(1R,2S,5R,6R)-6-Allyl-5-(tert-butyl-dimethyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxy)-cyclohex-3-enyl]-acetic acid ethyl ester

(1S,4R,4aS,5R,8S,8aR)-8-(tert-Butyl-dimethyl-silanyloxy)-1,4,4a,5,8,8a-hexahydro-1,4-methano-naphthalen-5-ol

(1S,4R,4aS,8S,8aR)-8-(tert-Butyl-dimethyl-silanyloxy)-4,4a,8,8a-tetrahydro-1H-1,4-methano-naphthalen-5-one