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发明人张德明,沈红梅,李文辉. "Method for the Synthesis of 2-Methoxyethyl 5-carbamoyl-2-(2-chloroacetamido)-4-methylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114434006 A, 授权公告日 2015-01-25.
发明人马晓峰,朱建伟,韩伟. "A Process for Preparing High-Purity 2-Methoxyethyl 5-carbamoyl-2-(2-chloroacetamido)-4-methylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 116911993 A, 授权公告日 2016-05-06.
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