发明人郑宇鹏,唐晓军,马晓峰. "Method for the Synthesis of 2-[(2,4-Dimethylphenyl)amino]nicotinic acid" [P]. 中国发明专利, 专利号 CN 115627380 B, 授权公告日 2021-02-10.
发明人郭海燕,韩伟,朱建伟. "A Process for Preparing High-Purity 2-[(2,4-Dimethylphenyl)amino]nicotinic acid" [P]. 中国发明专利, 专利号 CN 115586739 B, 授权公告日 2020-05-01.
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