2,3-diphenyl-6,7,8,9,9a,10-hexahydroimidazo[1,2-b]cinnoline

6-methyl-2,3-diphenyl-5,6,7,8-tetrahydroimidazo[1,2-b]pyridazine

2,3-diphenyl-5,5a,6,7,8,9,9a,10-octahydroimidazo[1,2-b]cinnoline

5-methyl-2,3-diphenyl-6,7-dihydro-5H-pyrrolo[1,2-a]imidazole

2-butyl-4,5-diphenyl-1,3-oxazole