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发明人刘建华,何建平,陈志强. "Method for the Synthesis of 6-Chloro-N-(4-chloro-2-methylphenyl)-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine" [P]. 中国发明专利, 专利号 CN 113314164 B, 授权公告日 2017-04-04.
发明人冯建国,赵玉洁,韩伟. "A Process for Preparing High-Purity 6-Chloro-N-(4-chloro-2-methylphenyl)-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine" [P]. 中国发明专利, 专利号 CN 117992943 A, 授权公告日 2021-06-02.
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