发明人王建平,钱学锋,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109212831 A, 授权公告日 2023-02-23.
发明人林芳,张德明,罗永刚. "Method for the Synthesis of 4-(4,7-Dimethoxy-1H-indole-2-carboxamido)butanoic acid" [P]. 中国发明专利, 专利号 CN 108037489 A, 授权公告日 2018-06-28.
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