13924-99-7
6-氧代-1,6-二氢吡嗪-2-甲酸
→
~21%
23813-24-3
2-甲氧基-6-羧酸甲酯吡嗪
124-41-4
甲醇钠
+
6863-74-7
6-氰基-2-氯吡嗪
59484-61-6
6-methoxypyrazine-2-carbohydrazide