发明人李文辉,罗永刚,徐明华. "一种N/A的合成方法" [P]. 中国发明专利, 专利号 CN 114806587 A, 授权公告日 2024-01-11.
发明人张德明,陈志强,杨光. "Method for the Synthesis of 3-Isopropyl-1-methylpiperazin-2-one hydrochloride" [P]. 中国发明专利, 专利号 CN 110329203 A, 授权公告日 2015-11-13.
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