发明人罗永刚,冯建国,李文辉. "Method for the Synthesis of 2-(Difluoromethyl)-3-iodo-4-nitropyridine-6-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 113070042 B, 授权公告日 2022-04-11.
发明人杨光,朱建伟,唐晓军. "A Process for Preparing High-Purity 2-(Difluoromethyl)-3-iodo-4-nitropyridine-6-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 116436930 A, 授权公告日 2024-09-23.
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