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发明人杨光,孙丽萍,黄志刚. "A Process for Preparing High-Purity Methyl 1-(2-cyanoethyl)-6-(4-fluorophenyl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 117638859 B, 授权公告日 2019-04-03.
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