1-(吗啉-4-基甲基)-3-苯基吡咯烷-2,5-二酮

3-phenyl-1-prop-2-enylpyrrolidine-2,5-dione

3-(4-nitrophenyl)oxolane-2,5-dione

3-methyl-4-phenylfuran-2,5-dione