7-{(1R,2R,3R)-3-(tert-Butyl-dimethyl-silanyloxy)-2-[(E)-(S)-3-(tert-butyl-dimethyl-silanyloxy)-oct-1-enyl]-5-hydroxy-cyclopentyl}-heptanoic acid

11,15-O-bis(tert-butyldimethylsilyl)PGF1α methyl ester

7-((1R,2R,3R)-3-((tert-butyldimethylsilyl)oxy)-2-((S,E)-3-((tert-butyldimethylsilyl)oxy)oct-1-en-1-yl)-5-oxocyclopentyl)heptanoic acid