发明人王建平,周伟,胡光. "Method for the Synthesis of 3H-Pyrazolo[3,4-d]pyrimidin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 112318361 A, 授权公告日 2023-04-18.
发明人何建平,杨光,孙丽萍. "A Process for Preparing High-Purity 3H-Pyrazolo[3,4-d]pyrimidin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 111210194 A, 授权公告日 2020-05-14.
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