发明人王建平,李文辉,罗永刚. "Method for the Synthesis of Ethyl 3-(piperazin-1-yl)butanoate" [P]. 中国发明专利, 专利号 CN 116035981 A, 授权公告日 2021-04-08.
Björnsson E, Kowalski A, Nowak P. "A Process for Preparing High-Purity Ethyl 3-(piperazin-1-yl)butanoate" [P]. European Patent, EP 3582094 A1, 2022-06-26.
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