发明人郭海燕,韩伟,刘建华. "Method for the Synthesis of 4-(4-Isobutyl-1-piperazinyl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 109139321 A, 授权公告日 2020-03-04.
发明人黄志刚,周伟,冯建国. "A Process for Preparing High-Purity 4-(4-Isobutyl-1-piperazinyl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 117069193 A, 授权公告日 2024-04-09.
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