4-[(3,4-dichlorophenyl)methylidene]-2-methyl-1,3-oxazol-5-one

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

2-acetamido-3-(1H-imidazol-5-yl)prop-2-enoic acid

(Z)-4-(2,4-二甲氧基亚苄基)-2-甲基噁唑-5(4h)-酮

2-methyl-4-[(4-nitrophenyl)methylidene]-1,3-oxazol-5-one