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发明人刘建华,沈红梅,李文辉. "Method for the Synthesis of 6-(Pyrazolo[1,5-b]pyridazin-3-yl)pyrimidin-2(1H)-one" [P]. 中国发明专利, 专利号 CN 108750094 B, 授权公告日 2022-07-08.
发明人唐晓军,何建平,高志强. "A Process for Preparing High-Purity 6-(Pyrazolo[1,5-b]pyridazin-3-yl)pyrimidin-2(1H)-one" [P]. 中国发明专利, 专利号 CN 117310725 A, 授权公告日 2020-11-14.
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