发明人赵玉洁,冯建国,何建平. "Method for the Synthesis of 4-(Hydroxymethyl)-4-methylpyrazolidin-3-one" [P]. 中国发明专利, 专利号 CN 112868361 A, 授权公告日 2023-09-13.
发明人郑宇鹏,刘建华,张德明. "A Process for Preparing High-Purity 4-(Hydroxymethyl)-4-methylpyrazolidin-3-one" [P]. 中国发明专利, 专利号 CN 111419716 B, 授权公告日 2020-02-01.
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