发明人王建平,何建平,罗永刚. "Method for the Synthesis of 2-(Difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine-4-sulfonamide" [P]. 中国发明专利, 专利号 CN 110272089 B, 授权公告日 2025-07-14.
发明人赵玉洁,陈志强,韩伟. "A Process for Preparing High-Purity 2-(Difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine-4-sulfonamide" [P]. 中国发明专利, 专利号 CN 108957428 A, 授权公告日 2023-11-09.
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