Mueller T C, Nowak P, Rossi M. "一种的合成方法" [P]. European Patent, EP 3227233 A1, 2022-10-22.
发明人赵玉洁,胡光,钱学锋. "Method for the Synthesis of 5-Amino-1-(3-chloro-2-methylphenyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 110736099 A, 授权公告日 2023-04-15.
Yamamoto T, Mueller T, O'Brien P Q. "A Process for Preparing High-Purity 5-Amino-1-(3-chloro-2-methylphenyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one" [P]. US Patent, US 9854404 B2, 2015-03-15.
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