发明人郑宇鹏,周伟,钱学锋. "Method for the Synthesis of 2-(Difluoromethyl)-4-hydroxy-3-methoxypyridine-6-sulfonamide" [P]. 中国发明专利, 专利号 CN 112939385 A, 授权公告日 2019-03-22.
发明人沈红梅,刘建华,杨光. "A Process for Preparing High-Purity 2-(Difluoromethyl)-4-hydroxy-3-methoxypyridine-6-sulfonamide" [P]. 中国发明专利, 专利号 CN 116553907 B, 授权公告日 2020-06-22.
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