发明人郑宇鹏,刘建华,徐明华. "Method for the Synthesis of methyl 3-hydroxy-4-methylthiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 114553069 B, 授权公告日 2022-02-10.
发明人赵玉洁,冯建国,张德明. "A Process for Preparing High-Purity methyl 3-hydroxy-4-methylthiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 113193861 A, 授权公告日 2023-11-10.
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