发明人冯建国,沈红梅,高志强. "Method for the Synthesis of 2-{[10-(ethoxycarbonyl)pyrido[1,2-a]indol-3-yl]oxy}acetic acid" [P]. 中国发明专利, 专利号 CN 116898563 A, 授权公告日 2015-10-02.
发明人高志强,钱学锋,张德明. "A Process for Preparing High-Purity 2-{[10-(ethoxycarbonyl)pyrido[1,2-a]indol-3-yl]oxy}acetic acid" [P]. 中国发明专利, 专利号 CN 113419003 B, 授权公告日 2022-11-28.
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