(4Z)-4-[(4-hydroxyphenyl)methylidene]-2-phenyl-1,3-oxazol-5-one

2-phenyl-4-(1H-quinolin-2-ylidene)-1,3-oxazol-5-one

N-(2-oxochromen-3-yl)benzamide

2-phenyl-4-salicyliden-4H-oxazol-5-one

(Z)-4-o-acetoxybenzylidene-2-phenyl-4,5-dihydrooxazol-5-one