(3R)-[(tert-butyldimethylsilyl)oxy]-7-[4-(4-fluorophenyl)-2-isopropyl-5-methyl-1H-pyrrol-3-yl]-6-(methanesulfinyl)-5-oxoheptanoic acid methyl ester
(3R)-[(tert-butyldimethylsilyl)oxy]-7-[4-(4-fluorophenyl)-2-isopropyl-5-methyl-1H-pyrrol-3-yl]-5-oxo-6-heptenoic acid methyl ester
(3R,5S)-7-[4-(4-fluorophenyl)-2-isopropyl-1-(methanesulfonyl)-5-methyl-1H-pyrrol-3-yl]-3,5-dihydroxy-6-heptenoic acid methyl ester
(E)-(R)-7-[4-(4-Fluoro-phenyl)-2-isopropyl-1-methanesulfonyl-5-methyl-1H-pyrrol-3-yl]-3-hydroxy-5-oxo-hept-6-enoic acid methyl ester
(3R)-[(tert-butyldimethylsilyl)oxy]-7-[4-(4-fluorophenyl)-2-isopropyl-1-(methanesulfonyl)-5-methyl-1H-pyrrol-3-yl]-5-oxo-6-heptenoic acid methyl ester