5345-47-1
2-氨基烟酸
+
17356-08-0
aminothioamide
→
~68%
37891-04-6
2-三氧代-2,3-二氢吡啶并[2,3-d]嘧啶-4(1h)-酮
89374-21-0
N-carbamothioyl-2-chloropyridine-3-carboxamide
~40%
91448-10-1
21038-66-4
吡啶并[2,3-D]嘧啶-2,4(1H,3H)-二酮
7463-30-1
3-甲基-2-乙酰氨基吡啶
126728-20-9
2,4-二氯吡咯并[2,3-D]嘧啶
24410-19-3
吡啶并[2,3-d]嘧啶-4(3H)-酮