(E)-(S)-7-[(1R,2S,3R,5S)-3,5-Dihydroxy-2-((2Z,5Z)-octa-2,5-dienyl)-cyclopentyl]-5-hydroxy-hept-6-enoic acid methyl ester

7-[(3aS,4R,5S,6aR)-5-(tert-butyl-dimethylsilyl)oxy-2-oxo-hexahydrocyclopenta[b]furan-4-yl]-5-hydroxy-hept-6-enoic acid methyl ester

5-(tert-butyl-dimethylsilyl)oxy-7-[(3aS,4R,5S,6aR)-5-(tert-butyldimethylsilyl)oxy-2-oxo-hexahydro-cyclopenta[b]furan-4-yl]-hept-6-enoic acid methyl ester

(E)-(S)-5-(tert-Butyl-dimethyl-silanyloxy)-7-[(1R,2S,3R,5S)-5-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-2-(2-hydroxy-ethyl)-cyclopentyl]-hept-6-enoic acid methyl ester

(E)-(S)-5-(tert-Butyl-dimethyl-silanyloxy)-7-[(1R,2S,3R,5S)-5-(tert-butyl-dimethyl-silanyloxy)-2-(2-oxo-ethyl)-3-triethylsilanyloxy-cyclopentyl]-hept-6-enoic acid methyl ester