89283-24-9
5-溴-4-硝基-2-噻吩羧酸
+
108-24-7
乙酸酐
→
~72%
89499-30-9
4-acetamido-5-bromothiophene-2-carboxylic acid
89499-35-4
4-amino-5-bromothiophene-2-carboxylic acid,hydrobromide