(3aR,5aR,9aS)-3a-Methyl-8-oxo-2,3,3a,4,5,6,7,8,9,9a-decahydro-cyclopenta[a]naphthalene-5a-carboxylic acid methyl ester

(3aR,5aS,6R,9aS)-6-Hydroxy-3a-methyl-8-oxo-2,3,3a,4,5,6,7,8,9,9a-decahydro-cyclopenta[a]naphthalene-5a-carboxylic acid methyl ester

(R)-1-(3-iodopropyl)-1-methyl-2-methylenecyclopentane

(R)-1-(3-hydroxypropyl)-1-methyl-2-methylenecyclopentane

(R)-1-(2-formyl)ethyl-1-methyl-2-methylenecyclopentane