发明人沈红梅,赵玉洁,马晓峰. "Method for the Synthesis of 5-chloro-6-[(4-chlorophenyl)amino]pyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117050472 A, 授权公告日 2018-09-22.
发明人胡光,郑宇鹏,韩伟. "A Process for Preparing High-Purity 5-chloro-6-[(4-chlorophenyl)amino]pyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108767284 B, 授权公告日 2021-04-16.
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