发明人孙丽萍,罗永刚,黄志刚. "Method for the Synthesis of Ethyl 4-(4-chlorophenyl)-2-[(cyanoacetyl)amino]-thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110078491 A, 授权公告日 2024-09-26.
发明人黄志刚,孙丽萍,周伟. "A Process for Preparing High-Purity Ethyl 4-(4-chlorophenyl)-2-[(cyanoacetyl)amino]-thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110524054 B, 授权公告日 2023-08-25.
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