Propanoic acid, 3-[2-[2-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)ethoxy]ethoxy]-, 2,5-dioxo-1-pyrrolidinyl ester
2,5-Dioxo-1-pyrrolidinyl 3-[2-[2-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)ethoxy]ethoxy]propanoate
2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2H-pyrrol-1(5H)-yl)ethoxy)ethoxy)propanoate