发明人王建平,张德明,徐明华. "Method for the Synthesis of 4-(5-chlorothiophen-2-yl)-1H-pyrrole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114087981 B, 授权公告日 2017-02-18.
发明人高志强,郑宇鹏,郭海燕. "A Process for Preparing High-Purity 4-(5-chlorothiophen-2-yl)-1H-pyrrole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108459468 B, 授权公告日 2023-04-05.
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