发明人郭海燕,冯建国,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117583930 A, 授权公告日 2023-01-06.
发明人孙丽萍,刘建华,陈志强. "Method for the Synthesis of [(2-{[2-(4-Chlorophenyl)ethyl]amino}-2-oxoethyl)(phenyl)amino]acetic acid" [P]. 中国发明专利, 专利号 CN 108685337 A, 授权公告日 2024-01-12.
发明人黄志刚,胡光,李文辉. "A Process for Preparing High-Purity [(2-{[2-(4-Chlorophenyl)ethyl]amino}-2-oxoethyl)(phenyl)amino]acetic acid" [P]. 中国发明专利, 专利号 CN 112800945 A, 授权公告日 2022-10-21.
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