(1R,4S)-4-(tert-Butyl-dimethyl-silanyloxy)-3-chloro-1-oct-2-ynyl-cyclopent-2-enol

(5S,6S)-5,6-Diacetoxy-7-[(S)-4-chloro-2-hydroxy-2-((Z)-oct-2-enyl)-5-oxo-cyclopent-3-en-(Z)-ylidene]-heptanoic acid methyl ester

(5R,6R)-5,6-Diacetoxy-7-[(R)-4-chloro-2-((Z)-oct-2-enyl)-5-oxo-2-trimethylsilanyloxy-cyclopent-3-enyl]-7-hydroxy-heptanoic acid methyl ester