发明人李文辉,冯建国,沈红梅. "Method for the Synthesis of 4-Bromo-3-methoxy-1H-indole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115073883 B, 授权公告日 2021-02-21.
发明人林芳,王建平,孙丽萍. "A Process for Preparing High-Purity 4-Bromo-3-methoxy-1H-indole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111885132 B, 授权公告日 2023-02-15.
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