发明人刘建华,张德明,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116898871 A, 授权公告日 2022-02-22.
发明人李文辉,徐明华,郑宇鹏. "Method for the Synthesis of 5-(Ethoxycarbonyl)-4-methyl-1H-pyrrole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111476330 B, 授权公告日 2019-09-13.
发明人胡光,黄志刚,杨光. "A Process for Preparing High-Purity 5-(Ethoxycarbonyl)-4-methyl-1H-pyrrole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109898038 A, 授权公告日 2020-09-12.
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