Sørensen M, Nielsen H, Rossi M. "Method for the Synthesis of 2-((2,3-Dimethylphenyl)amino)-2-oxoacetic acid" [P]. European Patent, EP 3413344 A1, 2023-08-02.
发明人王建平,高志强,沈红梅. "A Process for Preparing High-Purity 2-((2,3-Dimethylphenyl)amino)-2-oxoacetic acid" [P]. 中国发明专利, 专利号 CN 110127039 A, 授权公告日 2015-07-09.
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