(4bR,8aR)-1-Hydroxy-4b,8-dimethyl-4b,5,6,8a,9,10-hexahydro-phenanthrene-2-carboxylic acid methyl ester

(5aR,9aR)-6,9a-Dimethyl-4,5,5a,8,9,9a-hexahydro-1H-naphtho[1,2-c]furan-3-one

(4aS,8aS)-2-(Bis-methylsulfanyl-methylene)-5,8a-dimethyl-3,4,4a,7,8,8a-hexahydro-2H-naphthalen-1-one

4aβ,8-dimethyl-3,4,4a,5,6,8aα-hexahydro-2<1H>-naphthalenone

7-triethylsilyloxy-1,4aβ-dimethyl-3,4,4a,5,8,8aα-hexahydronaphthalene