发明人杨光,冯建国,韩伟. "Method for the Synthesis of Methyl 5-benzyl-2-[(cyanoacetyl)amino]thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 117604678 A, 授权公告日 2017-07-02.
发明人郭海燕,何建平,杨光. "A Process for Preparing High-Purity Methyl 5-benzyl-2-[(cyanoacetyl)amino]thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 108920208 B, 授权公告日 2018-12-22.
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