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

4-[1-(3-nitrophenyl)ethylidene]-2-phenyl-1,3-oxazol-5-one

E-2-phenyl-4-(α-p-methylphenylethylidene)-5(4H)-oxazolone

4-[1-(4-methylphenyl)ethylidene]-2-phenyl-1,3-oxazol-5-one

E-2-phenyl-4-(α-p-chlorophenylethylidene)-5-(4H)-oxazolone