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发明人钱学锋,赵玉洁,马晓峰. "Method for the Synthesis of 5-Amino-2-methyl-2H-pyrazolo[3,4-d]pyrimidin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 117768238 B, 授权公告日 2018-08-06.
发明人马晓峰,朱建伟,王建平. "A Process for Preparing High-Purity 5-Amino-2-methyl-2H-pyrazolo[3,4-d]pyrimidin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 117221974 B, 授权公告日 2017-05-25.
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