O'Brien P Q, Lee S K, Klinger H. "一种2-ethoxy-4-methylpyridine-3-carboxylic acid的合成方法" [P]. US Patent, US 9414668 B2, 2024-04-22.
发明人张德明,马晓峰,朱建伟. "Method for the Synthesis of 2-ethoxy-4-methylpyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110768121 B, 授权公告日 2024-10-10.
发明人钱学锋,刘建华,郑宇鹏. "A Process for Preparing High-Purity 2-ethoxy-4-methylpyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111826785 B, 授权公告日 2020-02-24.
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