发明人赵玉洁,沈红梅,郭海燕. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116229407 A, 授权公告日 2015-06-02.
发明人沈红梅,冯建国,刘建华. "Method for the Synthesis of 5-(Ethylsulfonyl)-4-(4-nitrophenyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 111630394 A, 授权公告日 2020-09-12.
发明人张德明,何建平,刘建华. "A Process for Preparing High-Purity 5-(Ethylsulfonyl)-4-(4-nitrophenyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 112724458 A, 授权公告日 2025-03-05.
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