2,4,6-triphenyl-2H-pyran

(Z,E)-1,3,5-triphenyl-penta-2,4-dien-1-one

3-(3,5-diphenyl-1H-pyrrol-2-yl)-1-phenylbutan-1-one

(2,4-diphenylpyrido[1,2-a][1,3]diazepin-5-yl)-phenylmethanone

(3,5-diphenyl-1-pyridin-3-ylpyrrol-2-yl)-phenylmethanone