2-phenyl-N'-(2-phenylacetyl)acetohydrazide

benzil-bis-(phenylacetyl-hydrazone)

2,3,8,9-tetraphenyl-1,4,7,10-tetrazacyclododeca-1,3,7,9-tetraene

2-(2,4,5-triphenylimidazol-1-yl)ethanol

dimethyl 2,3-dibenzoylbut-2-enedioate