发明人张德明,赵玉洁,郭海燕. "Method for the Synthesis of 5-Chloro-2-oxo-1,2-dihydropyridine-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 112602307 A, 授权公告日 2023-02-06.
发明人王建平,郭海燕,郑宇鹏. "A Process for Preparing High-Purity 5-Chloro-2-oxo-1,2-dihydropyridine-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 115213679 B, 授权公告日 2016-02-23.
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