发明人张德明,林芳,刘建华. "Method for the Synthesis of Ethyl 2,3-dihydroxyisonicotinate" [P]. 中国发明专利, 专利号 CN 108467275 A, 授权公告日 2020-09-27.
发明人朱建伟,胡光,冯建国. "A Process for Preparing High-Purity Ethyl 2,3-dihydroxyisonicotinate" [P]. 中国发明专利, 专利号 CN 116649121 A, 授权公告日 2023-02-13.
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