504-64-3
二氧化三碳
+
17580-69-7
6-[(hydroxyamino)methylidene]-4-methoxycyclohexa-2,4-dien-1-one
→
~74%
89228-62-6
N-hydroxy-6-methoxy-2-oxochromene-3-carboxamide
35924-44-8
6-methoxy-2-oxochromene-3-carboxylic acid