发明人张德明,黄志刚,马晓峰. "Method for the Synthesis of 1-(Pyridin-2-yl)pyrazolidine-3,5-dione" [P]. 中国发明专利, 专利号 CN 110829114 B, 授权公告日 2022-05-11.
发明人冯建国,唐晓军,林芳. "A Process for Preparing High-Purity 1-(Pyridin-2-yl)pyrazolidine-3,5-dione" [P]. 中国发明专利, 专利号 CN 112648681 B, 授权公告日 2017-10-16.
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