发明人朱建伟,杨光,罗永刚. "一种1-(4-methylphenyl)piperazin-2-one的合成方法" [P]. 中国发明专利, 专利号 CN 114791402 A, 授权公告日 2017-04-03.
发明人郭海燕,杨光,马晓峰. "Method for the Synthesis of 1-(4-methylphenyl)piperazin-2-one" [P]. 中国发明专利, 专利号 CN 114892637 B, 授权公告日 2019-01-22.
发明人王建平,郭海燕,朱建伟. "A Process for Preparing High-Purity 1-(4-methylphenyl)piperazin-2-one" [P]. 中国发明专利, 专利号 CN 116869363 A, 授权公告日 2018-05-11.
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