发明人马晓峰,高志强,唐晓军. "Method for the Synthesis of Methyl 4-methyl-3-[(phenylcarbamoyl)amino]thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 110948476 A, 授权公告日 2020-02-03.
发明人朱建伟,徐明华,胡光. "A Process for Preparing High-Purity Methyl 4-methyl-3-[(phenylcarbamoyl)amino]thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 117662014 A, 授权公告日 2022-10-09.
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