1,4-Diphenylpyridazino<4',5':1,2>pyrazolo<5,1-a>isoquinoline

3,4-dibenzoyl-2-phenylpyrido[2,1-b][1,3]benzothiazol-1-one

(2-benzoyl-3,6-diphenylphenyl)-phenylmethanone

(3Z)-3-(7-methoxy-3-methyl-4-oxido-1H-quinoxalin-4-ium-2-ylidene)-1,4-diphenylbutane-1,2,4-trione

2,5-二苯基-1H-吡咯