发明人郑宇鹏,韩伟,刘建华. "一种5-(乙砜基)吡啶-2-甲酸乙酯的合成方法" [P]. 中国发明专利, 专利号 CN 109550988 A, 授权公告日 2020-12-24.
发明人何建平,陈志强,胡光. "Method for the Synthesis of Ethyl 5-(Ethylsulfonyl)pyridine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 111972406 A, 授权公告日 2025-04-05.
发明人朱建伟,郑宇鹏,钱学锋. "A Process for Preparing High-Purity Ethyl 5-(Ethylsulfonyl)pyridine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 116350960 B, 授权公告日 2023-04-11.
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