867130-58-3
6-酮-1,6-二氢哒嗪-4-羧酸
+
64-17-5
乙醇
→
~84%
21427-85-0
6-氧代-1,6-二氢吡嗪-4-羧酸乙酯
5472-38-8
甲酸基丁二酸二乙酯
412301-44-1
6-oxo-1,4,5,6-tetrahydro-pyridazine-4-carboxylic acid ethyl ester
867130-57-2
6-氧代-1,6-二氢吡嗪-4-碳酰肼