发明人李文辉,张德明,钱学锋. "Method for the Synthesis of 4-(1,3-Dimethyl-1H-pyrazole-5-carbonyl)piperazin-2-one" [P]. 中国发明专利, 专利号 CN 115620911 B, 授权公告日 2017-11-25.
Martínez F, Kowalski A, Johansson L. "A Process for Preparing High-Purity 4-(1,3-Dimethyl-1H-pyrazole-5-carbonyl)piperazin-2-one" [P]. European Patent, EP 3797854 A1, 2020-03-16.
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