发明人郑宇鹏,刘建华,何建平. "Method for the Synthesis of Ethyl 2-((3,4-dimethylphenyl)amino)-2-oxoacetate" [P]. 中国发明专利, 专利号 CN 112663321 A, 授权公告日 2020-02-18.
发明人周伟,胡光,冯建国. "A Process for Preparing High-Purity Ethyl 2-((3,4-dimethylphenyl)amino)-2-oxoacetate" [P]. 中国发明专利, 专利号 CN 111818139 B, 授权公告日 2024-12-15.
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