发明人何建平,韩伟,周伟. "Method for the Synthesis of 2-Amino-4-(3,4-dichlorophenyl)thiophene-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 108966150 B, 授权公告日 2015-12-20.
发明人高志强,唐晓军,黄志刚. "A Process for Preparing High-Purity 2-Amino-4-(3,4-dichlorophenyl)thiophene-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 109518843 B, 授权公告日 2019-08-13.
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