发明人赵玉洁,何建平,高志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108829797 A, 授权公告日 2019-10-10.
发明人马晓峰,何建平,冯建国. "Method for the Synthesis of 4-Ethylpiperazine-1-carboxamide" [P]. 中国发明专利, 专利号 CN 117540504 B, 授权公告日 2018-07-25.
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