发明人王建平,高志强,冯建国. "Method for the Synthesis of 1-Ethylpiperazine-2-carboxylic acid dihydrochloride" [P]. 中国发明专利, 专利号 CN 110536125 A, 授权公告日 2017-03-24.
发明人韩伟,高志强,黄志刚. "A Process for Preparing High-Purity 1-Ethylpiperazine-2-carboxylic acid dihydrochloride" [P]. 中国发明专利, 专利号 CN 112592283 B, 授权公告日 2019-02-16.
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