Dihydroisohibasaeure-methylester

(1R,4aR,4bS,7S,8aR,9R,10aR)-9-Hydroxy-7-(2-hydroxy-ethyl)-1,4a,7-trimethyl-tetradecahydro-phenanthrene-1-carboxylic acid methyl ester

(1R,4aR,4bS,7S,8aR,10aR)-7-(2-Hydroxy-ethyl)-1,4a,7-trimethyl-9-oxo-tetradecahydro-phenanthrene-1-carboxylic acid methyl ester

methyl (4R,4aR,6aR,9R,11aR,11bR)-4,9,11b-trimethyl-6-oxotetradecahydro-6a,9-methanocyclohepta[a]naphthalene-4-carboxylate