发明人周伟,沈红梅,赵玉洁. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112564408 A, 授权公告日 2020-12-25.
发明人黄志刚,徐明华,刘建华. "Method for the Synthesis of 6-(Ethoxycarbonyl)-2-hydroxypyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112421024 B, 授权公告日 2025-09-16.
发明人王建平,郭海燕,周伟. "A Process for Preparing High-Purity 6-(Ethoxycarbonyl)-2-hydroxypyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116744652 A, 授权公告日 2024-03-04.
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