(1S,4aR,8aR)-(+)-1-(2,5-dimethoxyphenyl)methyl-2-oxo-5,5,8a-trimethyldecahydronaphthalene

(4aR,8aR)-(+)-1-methylene-2-oxo-5,5,8a-trimethyldecahydronaphthalene

(+)-(1S,4aR,8aR)-1-bromomethyl-2-oxo-decahydro-5,5,8a-trimethylnaphthalene

(-)-(4aR,8aR)-1-(2,5-dimethoxyphenyl)methyl-2-acetoxy-3,4,4a,5,6,7,8,8a-octahydro-5,5,8a-trimethylnaphthalene