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发明人冯建国,郑宇鹏,孙丽萍. "A Process for Preparing High-Purity 3-Bromo-1h-pyrazolo[4,3-b]pyridine-6-carbonitrile" [P]. 中国发明专利, 专利号 CN 111987649 B, 授权公告日 2016-04-11.
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