发明人徐明华,赵玉洁,何建平. "Method for the Synthesis of 5-Amino-1-(3-chloro-4-methoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 117041450 B, 授权公告日 2016-01-21.
Brown S R, Thompson G K, Stevens L M. "A Process for Preparing High-Purity 5-Amino-1-(3-chloro-4-methoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one" [P]. US Patent, US 9302804 B2, 2022-02-14.
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