(Z)-7-{(1S,2S,3S,5R)-2-[(E)-(R)-3-(tert-Butyl-dimethyl-silanyloxy)-oct-1-enyl]-3,5-dihydroxy-cyclopentyl}-hept-5-enoic acid methyl ester
(Z)-7-{(1S,2S,3R,5S)-3,5-Dibromo-2-[(E)-(R)-3-(tert-butyl-dimethyl-silanyloxy)-oct-1-enyl]-cyclopentyl}-hept-5-enoic acid methyl ester
(Z)-7-[(1S,2S,3R,5S)-3,5-Dibromo-2-((E)-(R)-3-hydroxy-oct-1-enyl)-cyclopentyl]-hept-5-enoic acid methyl ester