发明人何建平,郑宇鹏,黄志刚. "Method for the Synthesis of 5-Chloro-2-(methylamino)nicotinic acid" [P]. 中国发明专利, 专利号 CN 110600662 A, 授权公告日 2020-07-10.
发明人郑宇鹏,赵玉洁,郭海燕. "A Process for Preparing High-Purity 5-Chloro-2-(methylamino)nicotinic acid" [P]. 中国发明专利, 专利号 CN 113883022 A, 授权公告日 2016-02-09.
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