发明人林芳,罗永刚,郭海燕. "Method for the Synthesis of 2-(Pyridin-3-ylamino)isonicotinic acid" [P]. 中国发明专利, 专利号 CN 115893601 B, 授权公告日 2024-03-13.
发明人郑宇鹏,王建平,冯建国. "A Process for Preparing High-Purity 2-(Pyridin-3-ylamino)isonicotinic acid" [P]. 中国发明专利, 专利号 CN 108445566 B, 授权公告日 2017-08-23.
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