发明人张德明,王建平,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109985926 A, 授权公告日 2025-06-20.
发明人郑宇鹏,朱建伟,赵玉洁. "Method for the Synthesis of 1-(3-Carboxy-4-hydroxy-phenyl)-2,5-dimethyl-1H-pyrrole-3-carboxylic acid tert-butyl ester" [P]. 中国发明专利, 专利号 CN 111622079 A, 授权公告日 2022-07-18.
发明人徐明华,孙丽萍,何建平. "A Process for Preparing High-Purity 1-(3-Carboxy-4-hydroxy-phenyl)-2,5-dimethyl-1H-pyrrole-3-carboxylic acid tert-butyl ester" [P]. 中国发明专利, 专利号 CN 108272415 B, 授权公告日 2023-09-18.
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