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发明人杨光,张德明,罗永刚. "A Process for Preparing High-Purity 4-Chloro-1-(4-methoxyphenyl)-6-(methylthio)-1H-pyrazolo[3,4-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 112633440 B, 授权公告日 2019-06-03.
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