2-(dimethylamino)-1,2,4,5-tetraphenylpyrrol-3-one

2-ethoxy-1,2,4,5-tetraphenylpyrrol-3-one

3,5-diphenyl-1,4,2,6-dithiadiazine

3,4-diphenyl-1,2,5-thiadiazole

N,N-diethyl-4,6-diphenyltriazin-5-amine