6-{(4S,4aR,5R,6R,7aS)-6-(tert-Butyl-dimethyl-silanyloxy)-5-[(E)-(S)-3-(tert-butyl-dimethyl-silanyloxy)-oct-1-enyl]-2,2-dimethyl-hexahydro-cyclopenta[1,3]dioxin-4-yl}-hex-5-ynoic acid methyl ester

6-[(4S,4aR,5R,6R,7aS)-6-Acetoxy-5-((E)-(S)-3-acetoxy-oct-1-enyl)-2,2-dimethyl-hexahydro-cyclopenta[1,3]dioxin-4-yl]-hex-5-ynoic acid methyl ester

7-[(S)-2-((E)-(S)-3-Hydroxy-oct-1-enyl)-5-oxo-cyclopent-3-en-(E)-ylidene]-heptanoic acid

(R)-7-Hydroxy-7-[(1S,2S)-2-((E)-(S)-3-hydroxy-oct-1-enyl)-5-oxo-cyclopent-3-enyl]-heptanoic acid methyl ester

7-[(S)-2-((E)-(S)-3-Hydroxy-oct-1-enyl)-5-oxo-cyclopent-3-en-(Z)-ylidene]-heptanoic acid methyl ester