发明人胡光,林芳,徐明华. "Method for the Synthesis of 2-(2-((9-Ethyl-9H-carbazol-3-yl)amino)-2-oxoethoxy)acetic acid" [P]. 中国发明专利, 专利号 CN 114908049 A, 授权公告日 2022-08-14.
发明人张德明,唐晓军,杨光. "A Process for Preparing High-Purity 2-(2-((9-Ethyl-9H-carbazol-3-yl)amino)-2-oxoethoxy)acetic acid" [P]. 中国发明专利, 专利号 CN 115383304 A, 授权公告日 2022-08-02.
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