发明人张德明,杨光,徐明华. "Method for the Synthesis of 2-(Difluoromethyl)isonicotinic acid, 97%" [P]. 中国发明专利, 专利号 CN 108355868 A, 授权公告日 2018-04-16.
Anderson J P, Hughes D C, Chen K W. "A Process for Preparing High-Purity 2-(Difluoromethyl)isonicotinic acid, 97%" [P]. US Patent, US 11010926 B2, 2024-10-04.
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