5-bromo-3-methyl-1H-pyrimidine-2,4-dione

1-苯甲基-1,4-二氢烟酰胺

3-甲基尿嘧啶

4-甲基苯磺酸苯基甲基酯

2-methoxy-3-methylpyrimidin-4(3H)-one