161369-34-2
→
~78%
141283-41-2
8-nitro-4-oxochromene-2-carbonitrile
110683-75-5
ethyl 8-nitro-4-oxochromene-2-carboxylate
33543-97-4
7-methyl-4-oxo-4H-1-Benzopyran-2-carbonitrile
+
8-nitro-4-oxo-4H-1-benzopyran-2-carboxamide
141283-42-3
8-硝基-2-(1H-四氮唑-5-基)-4H-1-苯并吡喃-4-酮
110683-23-3
8-氨基-4-酮-2-(四氮唑-5-基)-4H-1-苯并吡喃盐酸盐