Butanoic acid, 4-[2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)ethoxy]-3-oxo-, ethyl ester
Ethyl 4-[2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)ethoxy]-3-oxobutanoate
Ethyl 4-(2-phthalimidoethoxy)acetoacetate
4-(2-Phthalimidoethoxy)acetoacetic acid ethyl ester
4-[2-(1,3-Dioxo-1,3-dihydroisoindol-2-yl)ethoxy]-3-oxobutanoic acid ethyl ester