发明人王建平,杨光,李文辉. "Method for the Synthesis of Methyl 6-ethyl-4-hydroxy-2-oxo-1,2-dihydropyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 113233037 A, 授权公告日 2021-09-03.
发明人王建平,高志强,孙丽萍. "A Process for Preparing High-Purity Methyl 6-ethyl-4-hydroxy-2-oxo-1,2-dihydropyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114372790 B, 授权公告日 2018-02-28.
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