5-[(2-{(2R)-2-[(1E,3S)-3-hydroxy-4-(3-methylphenyl)but-1-enyl]-5-oxopyrrolidin-1-yl}ethyl)sulfanyl]thiophene-2-carboxylic acid

methyl 4-({2-[(2R)-2-{(1E)-4-[3-(methoxymethyl)phenyl]-3-oxo-1-buten-1-yl}-5-oxo-1-pyrrolidinyl]ethyl}thio)butanoate

4-{[2-((2R)-2-{(1E,3S)-3-hydroxy-4-[3-(methoxymethyl)phenyl]but-1-enyl}-5-oxopyrrolidin-1-yl)ethyl]sulfanyl}butanoic acid

methyl 4-[(2-{(2R)-2-[(tert-butyldimethylsilyloxy)methyl]-5-oxo-1-pyrrolidinyl}ethyl)thio]butanoate

9-oxo-12-formyl-13,14,15,16,17,18,19,20-octanor-5-thia-8-azaprostanoic acid methyl ester