(1S,2R,4aS,6S,8aR)-6-(tert-Butyl-diphenyl-silanyloxy)-1-hydroxymethyl-8a-(2-trimethylsilanyl-ethoxymethoxymethyl)-decahydro-naphthalen-2-ol

(3aR,5R,6aS,8S,10aR)-8-(tert-Butyl-dimethyl-silanyloxy)-5-hydroxy-4-methylene-octahydro-2-oxa-cyclopenta[d]naphthalen-3-one

(1S,4S,5R)-2-Methoxy-5-(4-methoxy-benzyloxy)-bicyclo[2.2.1]hept-2-ene

(4aS,6S,8aR)-6-(tert-Butyl-diphenyl-silanyloxy)-8a-(2-trimethylsilanyl-ethoxymethoxymethyl)-3,4,4a,5,6,7,8,8a-octahydro-naphthalene-1-carboxylic acid methyl ester

(3aR,4R,6aS,8S,10aR)-4,8-Dihydroxy-octahydro-2-oxa-cyclopenta[d]naphthalen-3-one