64-17-5
乙醇
+
65-49-6
4-氨基水杨酸
→
~59%
6059-17-2
ethyl 4-amino-2-hydroxybenzoate
39614-82-9
2-hydroxy-4-nitrobenzoyl chloride
619-19-2
4-硝基水杨酸
22776-13-2
78987-51-6
ethyl 2-hydroxy-4-nitrobenzoate