N-(2-羟乙基)丁二酰胺

1-[2-oxo-3-(triphenyl-λ⁵-phosphanylidene)propyl]pyrrolidine-2,5-dione

1-(3-氯丙基)吡咯烷-2,5-二酮

3,4-二氯吡咯-2,5-二酮

3-(1H-indol-3-yl)pyrrolidine-2,5-dione