发明人刘建华,李文辉,林芳. "一种N/A的合成方法" [P]. 中国发明专利, 专利号 CN 117957591 A, 授权公告日 2019-08-18.
发明人何建平,孙丽萍,朱建伟. "Method for the Synthesis of 2-(2-Oxo-1,2-dihydro-[3,4'-bipyridin]-5-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 112717165 A, 授权公告日 2023-05-19.
发明人李文辉,沈红梅,唐晓军. "A Process for Preparing High-Purity 2-(2-Oxo-1,2-dihydro-[3,4'-bipyridin]-5-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 108455299 B, 授权公告日 2023-04-04.
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