发明人韩伟,钱学锋,黄志刚. "Method for the Synthesis of Ethyl 2-amino-4-(2,4-dimethylphenyl)thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 117084643 A, 授权公告日 2018-09-04.
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