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发明人朱建伟,王建平,周伟. "A Process for Preparing High-Purity 3-Cyclopropyl-1-(4-methoxyphenyl)-6-methyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110938207 B, 授权公告日 2016-03-05.
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