5-amino-1,2-diphenyl-2H-pyrrole-3,3,4-tricarbonitrile

5-amino-2-ethyl-1-pentyl-2H-pyrrole-3,3,4-tricarbonitrile

2-amino-1-(4-chlorophenyl)-5-phenylpyrrole-3,4-dicarbonitrile

2-amino-5-phenyl-1-pyridin-2-ylpyrrole-3,4-dicarbonitrile

2-amino-5-(2-hydroxyphenyl)-1-phenylpyrrole-3,4-dicarbonitrile