乙酰乙酸苯酯

N-(2,3-二甲苯基)-3-氧代丁酰胺

5-acetyl-1-(2,3-dimethylphenyl)-6-oxo-1,6-dihydropyridine-3-carbonitrile

2-benzylidene-N-ethyl-3-oxobutanamide

3-ethyl-6-methyl-2-phenyl-2H-1,3-oxazin-4-one