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发明人张德明,赵玉洁,朱建伟. "Method for the Synthesis of 4-Methyl-5-(methylsulfonyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 112272719 B, 授权公告日 2020-12-05.
发明人韩伟,李文辉,郑宇鹏. "A Process for Preparing High-Purity 4-Methyl-5-(methylsulfonyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 114692656 B, 授权公告日 2022-01-04.
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