methyl 5,5-dimethylene-7-iodo-heptanoate

(5R)-5-{(1E,3S)-3-(tert-butyldimethylsilyloxy)-4-[3-(methoxymethyl)phenyl]-1-buten-1-yl}-2-pyrrolidinone

methyl 7-acetoxy-5-methyleneheptanoate

methyl 4-(1-(2-hydroxyethyl)cyclopropyl)butanoate

tert-butyl (2R)-2-{(1E)-4-[3-(methoxymethyl)phenyl]-3-oxo-1-buten-1-yl}-5-oxo-1-pyrrolidinecarboxylate