发明人韩伟,王建平,冯建国. "Method for the Synthesis of 6-Amino-5-((4-chlorophenyl)sulfonyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 109984038 A, 授权公告日 2017-09-28.
发明人赵玉洁,李文辉,朱建伟. "A Process for Preparing High-Purity 6-Amino-5-((4-chlorophenyl)sulfonyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 114081069 A, 授权公告日 2023-03-12.
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