发明人黄志刚,王建平,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110456048 A, 授权公告日 2020-09-13.
发明人赵玉洁,陈志强,周伟. "Method for the Synthesis of 5,6,7-Trimethoxy-1-methyl-1h-indole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113539616 B, 授权公告日 2021-01-04.
发明人何建平,张德明,郑宇鹏. "A Process for Preparing High-Purity 5,6,7-Trimethoxy-1-methyl-1h-indole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115995159 A, 授权公告日 2023-06-08.
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