methyl 4-amino-3-chloro-6-(3,4-dimethylphenyl)pyridine-2-carboxylate 以
甲醇 、
sodium hydroxide 为溶剂,
反应 2.0h,
以to give 4-amino-3-chloro-6-(3,4-dimethylphenyl)-pyridine-2-carboxylic acid (0.85 g, 0.003 mol), mp 192-4° C.的产率得到4-amino-3-chloro-6-(3,4-dimethylphenyl)pyridine-2-carboxylic acid