Chen K W, Yamamoto T, Kumar R. "一种2-(4-(二氟甲基)-3-羟基-5-硝基吡啶-2-基)乙酸的合成方法" [P]. US Patent, US 11746920 B2, 2018-01-08.
发明人何建平,王建平,钱学锋. "Method for the Synthesis of 2-(4-(Difluoromethyl)-3-hydroxy-5-nitropyridin-2-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 117512040 B, 授权公告日 2023-10-15.
发明人胡光,孙丽萍,朱建伟. "A Process for Preparing High-Purity 2-(4-(Difluoromethyl)-3-hydroxy-5-nitropyridin-2-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 115887240 A, 授权公告日 2024-08-20.
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