发明人刘建华,高志强,张德明. "Method for the Synthesis of Isopropyl 2-amino-5-(diethylcarbamoyl)-4-methylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 116092916 B, 授权公告日 2018-01-17.
发明人钱学锋,杨光,冯建国. "A Process for Preparing High-Purity Isopropyl 2-amino-5-(diethylcarbamoyl)-4-methylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109120072 B, 授权公告日 2017-06-04.
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