发明人王建平,朱建伟,韩伟. "Method for the Synthesis of 5-ethyl-1-methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108799761 A, 授权公告日 2020-05-28.
发明人钱学锋,徐明华,郑宇鹏. "A Process for Preparing High-Purity 5-ethyl-1-methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114260943 A, 授权公告日 2022-04-07.
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