3-benzylpyrrolidine-2,5-dione

3-[4-(trifluoromethyl)phenyl]pyrrole-2,5-dione

3-(2,5-dioxopyrrolidin-3-yl)-1H-indole-6-carboxylic acid

1-acetylpyrrole-2,5-dione

1-(morpholin-4-ylmethyl)pyrrole-2,5-dione