5-[(3aS,5R,6R,6aS)-6-Formyl-5-(tetrahydro-pyran-2-yloxy)-1,3a,4,5,6,6a-hexahydro-pentalen-2-yl]-pentanoic acid methyl ester

methyl (1R,5S,6R,7R)-7-hydroxy-6-<3(R)-hydroxy-4,4-dimethyl-(E)-1-octenyl>bicyclo<3.3.0>oct-2-ene-3-pentanoate

methyl (1R,5S,6R,7R)-7-hydroxy-6-<3(S)-hydroxy-4,4-dimethyl-(E)-1-octenyl>bicyclo<3.3.0>oct-2-ene-3-pentanoate