methyl 3-((1R,2R,4aR,6S,8aS)-2-((E)-3-acetoxyprop-1-en-1-yl)-1,6-dimethyl-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl)-3-oxopropanoate

2,2,2-trifluoroethyl (2S,3R,3aR,5aR,7S,9aS,9bR)-7,9b-dimethyl-1-oxo-3-vinyl-2,3,3a,5a,6,7,8,9,9a,9b-decahydro-1H-cyclopenta[a]naphthalene-2-carboxylate

methyl N-((2S,3R,3aR,5aR,7S,9aS,9bR)-7,9b-dimethyl-1-oxo-3-vinyl-2,3,3a,5a,6,7,8,9,9a,9b-decahydro-1H-cyclopenta[a]naphthalene-2-carbonyl)-N-methyl-D-serinate

methyl N-((2S,3R,3aR,5aR,7S,9aS,9bR)-3-acetyl-7,9b-dimethyl-1-oxo-2,3,3a,5a,6,7,8,9,9a,9b-decahydro-1H-cyclopenta[a]naphthalene-2-carbonyl)-N-methyl-D-serinate

methyl N-((2S,3R,3aR,5aR,7S,9aS,9bR)-3-((S)-1-hydroxyethyl)-7,9b-dimethyl-1-oxo-2,3,3a,5a,6,7,8,9,9a,9b-decahydro-1H-cyclopenta[a]naphthalene-2-carbonyl)-N-methyl-D-serinate