(2-硝基苯基)马来酰亚胺

N-(4-硝基苯基)马来酰亚胺

3,5-diphenyl-3a,6a-dihydro-3H-pyrrolo[3,4-c]pyrazole-4,6-dione

N-苯丁二醯亞胺

1,3-diphenyl-1H-pyrrole-2,5-dione