141468-58-8
→
~52%
141468-73-7
3-(2-bromoethoxy)-4-chloro-7-nitroisochromen-1-one
89-51-0
邻羧基苯乙酸
3898-66-6
2-(Carboxymethyl)-5-nitrobenzoic acid
126062-22-4
7-amino-3-(2-bromoethoxy)-4-chloroisochromen-1-one