N-(2H-四唑-5-基)乙酰胺

3-methyl-6-phenyl-1H-pyrimidine-2,4-dione

3-methyl-6-phenyl-1,3-oxazine-2,4-dione

ethyl 2-(2,4-dioxo-6-phenyl-1,3-oxazin-3-yl)acetate

5-formyl-2-phenylfuran-3-carboxylic acid