发明人高志强,孙丽萍,刘建华. "Method for the Synthesis of 5-Amino-1-(4-chlorophenyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 112083091 A, 授权公告日 2022-02-20.
发明人唐晓军,徐明华,周伟. "A Process for Preparing High-Purity 5-Amino-1-(4-chlorophenyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 108370178 B, 授权公告日 2018-04-13.
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