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发明人张德明,刘建华,林芳. "A Process for Preparing High-Purity 4-(4-Benzylpiperazin-1-yl)-1H-pyrazolo[3,4-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 112170669 A, 授权公告日 2021-01-28.
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