发明人刘建华,周伟,韩伟. "Method for the Synthesis of Ethyl 2-amino-5-methoxy-4-methylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 117961460 A, 授权公告日 2023-04-17.
发明人罗永刚,何建平,李文辉. "A Process for Preparing High-Purity Ethyl 2-amino-5-methoxy-4-methylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 108415705 B, 授权公告日 2021-11-15.
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