1-benzoyl-3-hydroxy-2H-pyrrol-5-one

2-phenyl-4-propanoyl-4H-1,3-oxazol-5-one

5-[1,1'-联苯]-4-基-2-苯基恶唑

1,5-diphenyl-1,2,4-triazole-3-carboxamide

(4Z)-2-phenyl-4-(1-phenylethylidene)-1,3-oxazol-5-one