7-[(R)-2-((E)-3-Cyclohexyl-3-hydroxy-propenyl)-5-oxo-pyrrolidin-1-yl]-heptanoic acid ethyl ester

ethyl 7-[(2R)-2-{(1E,3S)-3-hydroxy-4-[3-(2,2,2-trifluoroethoxymethyl)phenyl]-1-buten-1-yl}-5-oxo-1-pyrrolidinyl]heptanoate

ethyl 7-[(2R)-2-{(1E,3S)-3-hydroxy-4-(3-fluorophenyl)-1-buten-1-yl}-5-oxo-1-pyrrolidinyl]heptanoate

ethyl 7-[(2R)-2-{(1E,3S)-3-hydroxy-4-[2-methylphenyl]-1-buten-1-yl}-5-oxo-1-pyrrolidinyl]heptanoate

ethyl 7-{(2R)-2-[(1E,3S)-3-hydroxy-4-(3-methylphenyl)-1-buten-1-yl]-5-oxo-1-pyrrolidinyl}heptanoate