124-42-5
盐酸乙脒
+
1068-90-2
乙酰胺基丙二酸二乙酯
→
98797-16-1
N-(4-hydroxy-2-methyl-6-oxo-1H-pyrimidin-5-yl)acetamide
39906-04-2
2-甲基-4,6-二氯-5-氨基嘧啶