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发明人何建平,李文辉,郑宇鹏. "A Process for Preparing High-Purity 5-bromo-3-methyl-1H-pyrazolo[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 110368233 A, 授权公告日 2023-02-23.
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