发明人刘建华,胡光,陈志强. "Method for the Synthesis of 4-(Dimethylamino)-N-(5-phenyl-1H-pyrazolo[3,4-c]pyridazin-3-yl)butanamide (2R,3R)-2,3-dihydroxysuccinate" [P]. 中国发明专利, 专利号 CN 108754551 A, 授权公告日 2020-08-19.
发明人唐晓军,周伟,李文辉. "A Process for Preparing High-Purity 4-(Dimethylamino)-N-(5-phenyl-1H-pyrazolo[3,4-c]pyridazin-3-yl)butanamide (2R,3R)-2,3-dihydroxysuccinate" [P]. 中国发明专利, 专利号 CN 114121137 B, 授权公告日 2018-09-17.
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