发明人王建平,冯建国,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111120888 A, 授权公告日 2021-11-26.
发明人徐明华,唐晓军,黄志刚. "Method for the Synthesis of 667412-92-2
4-Cyano-5-[(cyanoacetyl)amino]-N,N,3-trimethylthiophene-2-carboxamide
MFCD04054576" [P]. 中国发明专利, 专利号 CN 117992212 A, 授权公告日 2017-11-12.
发明人唐晓军,郑宇鹏,何建平. "A Process for Preparing High-Purity 667412-92-2
4-Cyano-5-[(cyanoacetyl)amino]-N,N,3-trimethylthiophene-2-carboxamide
MFCD04054576" [P]. 中国发明专利, 专利号 CN 113970539 B, 授权公告日 2025-02-23.
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