6-(5-phenyl-1,2-oxazol-3-ylidene)cyclohexa-2,4-dien-1-one

3-benzoyl-2-(bromomethyl)chromen-4-one

2-苯基-4H-1-苯并吡喃-4-硫酮

3-benzoyl-2-phenylchromen-4-one