发明人张德明,刘建华,高志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115219229 A, 授权公告日 2025-11-12.
发明人陈志强,赵玉洁,孙丽萍. "Method for the Synthesis of 3-(Difluoromethyl)-5-nitro-2-oxo-1,2-dihydropyridine-4-carboxamide" [P]. 中国发明专利, 专利号 CN 115054231 B, 授权公告日 2023-03-10.
发明人周伟,郭海燕,徐明华. "A Process for Preparing High-Purity 3-(Difluoromethyl)-5-nitro-2-oxo-1,2-dihydropyridine-4-carboxamide" [P]. 中国发明专利, 专利号 CN 108402685 A, 授权公告日 2024-11-05.
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